Exam Prep Materials

Contents:
Basic science general medicine
Rhinology and allergy
General otolaryngology
Laryngology
Trauma
Pediatric otolaryngology
Head and neck surgery
Sleep medicine
Otology
Facial plastic and reconstructive surgery
Contemporary issues in medical practice.

Contents:
Inflammatory diseases of the epidermis
Dermal based inflammatory diseases
Vesiculobullous diseases
Vasculitis and related disorders
Inflammatory diseases of adnexal structures and subcutis
Alterations to components of the epidermis and dermis
Infectious diseases of the skin
Tumors of the epidermis and cysts
Adnexal tumors
Melanocytic proliferations
Tumors of mesenchymal origin
Lymphoid, leukemic, and other cellular infiltrates.

Summary: "Basic Concepts in Pharmacology: What You Need to Know for Each Drug Class is a review book for pharmacology designed to help students organize and understand the hundreds of drugs covered in pharmacology classes today"-- Provided by publisher.

Summary: Focused and results-based, this important board review title covers everything that residents need to know when preparing for their Anesthesiology BASIC exam. Written by residents familiar with the exam, its use of bullet points and illustrations enables effective learning and efficient exam preparation. Providing a comprehensive review of all exam topics, the guide uses a clear and focused note-taking style to present 'high-yield' information, enabling efficient study techniques. Bullet points and short paragraphs feature to help rapid understanding, with margin space provided to annotate and add further notes. The helpful format ensures that all exam preparation, including notes from question banks, can be kept in this 'one-stop' review book. Mirroring the BASIC exam requirements, this book covers clinical anesthetic practice, pharmacology, physiology, anatomy, and anesthesia equipment and monitoring. Written by residents for residents, it is an essential preparation resource for the Anesthesiology BASIC exam.

Contents:
Anatomy
Anesthesia delivery systems
Monitoring methods
Ventilators, alarms, and safety features
Defibrillators
Electrical, fire, and explosion hazards
Basic mathematics and statistics
General pharmacology
Inhaled anesthetics
Opioids
Intravenous anesthetics
Local anesthetics
Muscle relaxants Evaluation of the patient and preoperative preparation
Preparation for general anesthesia and premedication
Regional anesthesia
General anesthesia
Monitored anesthesia care and sedation
Intravenous fluid therapy
Complications of anesthesia: etiology, prevention, treatment
Postanesthesia recovery period: analgesics
Postanesthesia recovery period: common scenarios
Central and peripheral nervous system
Pain mechanisms and pathways
Autonomic nervous system
Central nervous system anatomy
Respiratory physiology
Respiratory system anatomy
Respiratory system: pharmacology
Cardiovascular physiology
Basics of cardiopulmonary resuscitation, medications, defibrillators, and advanced
Cardiac life S
Cardiovascular anatomy
Cardiovascular pharmacology
Gastrointestinal systems
Renal anatomy and physiology
Renal pharmacology
Hematologic system: coagulation, anticoagulation, antiplatelet, and thrombolytics
Transfusions Reactions to transfusions
Endocrine and metabolic systems
Neuromuscular physiology and disorders
Special problems or issues in anesthesiology

Summary: Every trainee in anaesthesia requires a thorough understanding of basic physiology and its application to clinical practice. Now in its second edition, this comprehensively illustrated textbook bridges the gap between medical school and reference scientific texts. It covers the physiology requirements of the Primary FRCA examination syllabus. Chapters are organised by organ system, with particular emphasis given to the respiratory, cardiovascular and nervous systems. The practical question-and-answer format helps the reader prepare for oral examinations, while 'clinical reference' boxes translate the physiological concepts to clinical practice. This new edition has been thoroughly updated and revised throughout, and includes six new chapters including the physiology of the eye, upper airway and exercise testing. It provides junior anaesthetists with an essential 'one stop' physiology resource.

Contents:
The beginning of life: pregnancy through preschool
School age, adolescence, special issues of development, and adulthood
Aging, death, and bereavement
Genetics, anatomy, and biochemistry of behavior
Biological assessment of patients with psychiatric symptoms
Psychoanalytic theory and defense mechanisms
Learning theory
Clinical assessment of patients with behavioral symptoms
Substance-related disorders
Normal sleep and sleep disorders
Schizophrenia spectrum and other psychotic disorders
Depressive disorders and bipolar and related disorders
Anxiety disorders, somatic disorders, and related conditions
Neurocognitive, personality, dissociative, and eating disorders
Psychiatric disorders in children
Biologic therapies: psychopharmacology
Psychological therapies
The family, culture, and illness
Sexuality
Aggression and abuse
The physician-patient relationship
Psychosomatic medicine
Legal and ethical issues in medicine
Health care in the United States
Medical epidemiology
Statistical analyses.

Summary: "Offering current coverage of behavioral science, psychiatry, epidemiology, and related topics, BRS Behavioral Science, Eighth Edition, prepares students to rapidly recall key information on the mind-body relationship and confidently apply that knowledge on exams and in practice. The popular BRS format presents essential information in a succinct, streamlined approach preferred by today's busy students, accompanied by hundreds of USMLE-style review questions with detailed answers and explanations to help strengthen students' exam readiness"-- Provided by publisher.

Contents:
The beginning of life : pregnancy through preschool
School age, adolescence, special issues of development, and adulthood
Aging, death, and bereavement
Genetics, anatomy, and biochemistry of behavior
Biological assessment of patients with psychiatric symptoms
Psychoanalytic theory and defense mechanisms
Learning theory
Clinical assessment of patients with behavioral symptoms
Substance-related disorders
Typical sleep and sleep-wake disorders
Schizophrenia spectrum and other psychotic disorders
Depressive disorders and bipolar and related disorders
Anxiety disorders, obsessive-compulsive and related disorders, somatic symptom disorders, and trauma and stressor-related disorders
Psychiatric disorders in children
Biologic therapies : psychopharmacology
Psychological therapies
The family, culture, and illness
Sexuality
Aggression and abuse
The physician-patient relationship
Psychosomatic medicine
Legal and ethical issues in medicine
Health care in the United States
Medical epidemiology
Statistical analyses.

Summary: "The goal of this textbook is to help medical students to efficiently learn and review physiology. The text offers a complete yet concise treatment of the major topics in medical physiology. Several design features are included to make the text easy to use. High-yield clinical pearls are integrated throughout to the text; clinical examples highlight the relevance and application of physiologic concepts. Key concepts are highlighted using italics and basic terms are shown in bold when first used. Full color figures illustrate essential processes; explanatory figure legends allow figures to be used for review. Bullets and numbering are used to break down complex processes Study questions and answers are provided at the end of each chapter. A final examination is also provided, which is organized by body system to allow either comprehensive testing or focused review"-- Provided by publisher.

Contents:
General Physiology
Neurophysiology
Blood
Cardiovascular Physiology
Pulmonary Physiology
Renal Physiology & Acid-Base Balance
Gastrointestinal Physiology
Endocrine Physiology
Reproductive Physiology
Final Examination.

Summary: Blueprints Family Medicine provides a complete, yet succinct review of the key concepts and topics that students need to know for a four- to six-week family medicine clerkship. With its concise, well-organized format, it serves as an ideal rapid reference for day-to-day patient care as well as subject examinations and board review. Updates throughout reflect the most current treatment and management strategies. A new section covers the 25 drugs most commonly prescribed in the primary care setting. Case vignettes demonstrate clinical applications. 100 USMLE-style review questions, with full explanations, facilitate exam preparation. Key Points at the end of each chapter summarize important information. Clinical boxes highlight clinical manifestations, differential diagnoses, and treatment options. A helpful appendix provides easy access to evidence-based resources.

Contents:
Part I. Principles of family medicine
Elements of family medicine
Patient communication and coordination of care – Screening – Immunizations
Preventive care: 19 to 64 Years
Preoperative evaluation
Family violence: awareness and prevention
Part II. Common signs and symptoms
Allergies
Back pain
Chest pain – Constipation – Cough – Diarrhea
Dizziness/Vertigo – Fatigue
Headache – Heartburn – Hematuria
Jaundice in adults
Knee pain – Lymphadenopathy
Nausea and vomiting --Painful joints
Palpitations – Pharyngitis – Proteinuria
Red eye
Respiratory infections
Shortness of breath
Shoulder pain
Somatic symptom disorder – Swelling
Weight loss
Part III. Common medical conditions – Acne
Alcohol and substance abuse – Anemia – Anxiety – Asthma
Atopic dermatitis
Chronic obstructive pulmonary disease
Congestive heart failure – Depression
Diabetes Mellitus Type 2 – Diverticulitis
Human immunodeficiency virus
Hypertension – Hyperthyroidism – Hypothyroidism – Obesity
Oral health – Osteoporosis
Prostate disease
Sexually transmitted diseases
Skin infections
Tobacco abuse
Urinary Tract Infection – Urticaria
Part IV. Women’s health
Abnormal pap smear
Abnormal vaginal bleeding – Amenorrhea
Breast Masses
Contraception – Vaginitis
Part V. Maternity care -Preconception counseling and prenatal care
Common medical problems in pregnancy
Postpartum care
Part VI. Care for infants, children, and adolescents
Preventive care: newborn to 5 years
Preventive care: 5 to 12 years
Adolescent medicine
Common medical problems in children
Behavioral issues in children
Fever in children
Otitis media
Preparticipation evaluation
Part VII. Care for older adults
Preventive care: 65 years and older
Geriatric assessment
Common medical problems in older adults – Dementia
Urinary incontinence
Nursing home and end-of-life care
Part VIII. Common medications
Analgesics: nonsteroidal anti-inflammatory and opioid medications – Antibiotics
Cardiovascular medications
Endocrine medications
Gastrointestinal medications
Psychiatric medications
Other medications.

Summary: One of the best selling and most highly regarded volumes in the Blueprints series, this book provides a concise review of what students need to know in their rotations or the Boards. Each chapter is brief and includes pedagogical features such as bold key words, tables, figures, and key points boxes. This edition has been reorganized to follow the Clerkship Directors in Internal Medicine guidelines, and includes a new section on neurology, case studies, and additional tables and figures. A question-and-answer section at the end of the book includes 100 board-format questions with complete rationales for each answer choice.

Contents:
pt. I, Cardiovascular :
Chest pain
Shock
Coronary heart disease and chronic angina
Acute coronary syndromes
Heart failure
Bradyarrhythmias
Tachyarrhythmias
Hypertension
Valvular heart disease
Vascular disease
Syncope. pt. II, Respiratory :
Dyspnea
Cough
Chronic obstructive pulmonary disease
Asthma
Pulmonary embolism
Interstitial lung disease
Pleural effusions
Lung cancer. pt. III, Renal :
Acid-base disturbances
Fluid and electrolytes
Acute Kidney injury
Chronic kidney disease
Glomerular disease
Nephrolithiasis
Hematuria. pt. IV, Infectious disease :
Fever and rash
Pneumonia
Sexually transmitted infections
Urinary tract infections
Tuberculosis
Gastroenteritis
Infective endocarditis
Meningitis
HIV part I: primary care of the HIV-infected patient
HIV part II: prophylaxis and treatment of opportunistic infections in HIV. pt. V, Gastrointestinal :
Abdominal pain
Diarrhea
Dyspepsia
Inflammatory bowel disease
Hepatitis
Cirrhosis
Cholestatic liver disease
Pancreatitis
Colorectal cancer. pt. VI, Endocrine :
Weight loss
Hyperthyroidism
Hypothyroidism
Diabetes mellitus
Hypercalcemia
Adrenal insufficiency
Cushing Syndrome
Pituitary disease
Nutritional disorders
Dyslipidemia. pt. VII, Rheumatology :
Acute monoarticular arthritis
Low back pain
Rheumatoid arthritis
Seronegative spondyloarthropathies
Connective tissue diseases
Vasculitis
Amyloidosis. pt. VIII, Hematology/Oncology :
Anemia
Hemolytic anemia
Adenopathy
Bleeding disorders
Breast cancer
Prostate cancer
Leukemia
Lymphoma. pt. IX, Neurology
Headache
Delirium
Dizziness
Dementia
Stroke
Seizures.

Contents:
The neurologic examination
Neurologic investigations
The approach to coma and altered consciousness
Neuro-ophthalmology
The approach to weakness
The sensory system
Dizziness, vertigo, and syncope
Ataxia and gait disorders
Urinary and sexual dysfunction
Headache and facial pain
Aphasia and other disorders of higher cortical function
Dementia
Sleep disorders
Vascular disease
Seizures
Movement disorders
Head trauma
Systemic and metabolic disorders
Central nervous system tumors
Demyelinating diseases of the central nervous system
Infections of the nervous system
Disorders of the spinal cord
The peripheral nervous system
Disorders of the neuromuscular junction and skeletal muscle
Pediatric neurology.

Contents:
The neurologic examination
Neurologic investigations
The approach to coma and altered consciousness
Neuro-ophthalmology
The approach to weakness
The sensory system
Dizziness, vertigo, and syncope
Ataxia and gait disorders
Urinary and sexual dysfunction
Headache and facial pain
Aphasia and other disorders of higher cortical function
Dementia
Sleep disorders
Vascular disease
Seizures
Movement disorders
Head trauma
Systemic and metabolic disorders
Central nervous system tumors
Demyelinating diseases of the central nervous system
Infections of the nervous system
Disorders of the spinal cord
Radiculopathy, plexopathy, and peripheral neuropathy
Disorders of the neuromuscular junction and skeletal muscle
Pediatric neurology.

Contents:
Machine generated contents note: pt. I OBSTETRICS
1. Pregnancy and Prenatal Care
2. Early Pregnancy Complications
3. Prenatal Screening, Diagnosis, and Treatment
4. Normal Labor and Delivery
5. Antepartum Hemorrhage
6.Complications of Labor and Delivery
7. Fetal Complications of Pregnancy
8. Hypertension and Pregnancy
9. Diabetes During Pregnancy
10. Infectious Diseases in Pregnancy
11. Other Medical Complications of Pregnancy
12. Postpartum Care and Complications
pt. II GYNECOLOGY
13. Benign Disorders of the Lower Genital Tract
14. Benign Disorders of the Upper Genital Tract
15. Endometriosis and Adenomyosis
16. Infections of the Lower Female Reproductive Tract
17. Infections of the Upper Female Reproductive Tract and Systemic Infections
18. Pelvic Organ Prolapse
19. Urinary Incontinence
20. Puberty, the Menstrual Cycle, and Menopause
21. Amenorrhea
22. Abnormalities of the Menstrual Cycle
23. Hirsutism and Virilism
24. Contraception and Sterilization
25. Termination of Pregnancy
26. Infertility and Assisted Reproductive Technologies
27. Vulvar and Vaginal Neoplasia
28. Cervical Neoplasia and Cervical Cancer
29. Endometrial Cancer
30. Ovarian and Fallopian Tube Tumors
31. Gestational Trophoblastic Disease
32. Benign Breast Disease and Breast Cancer.

Summary: "Among all the WK clerkship series, Blueprints remains the best-known among medical students. While no individual Blueprints title has sold as consistently as Step-Up to Medicine, the series has maintained a consistent following over the years. In the 2016 clerkship market research study conducted through our market research team, the only series that was mentioned as frequently by both students and clerkship directors was McGraw-Hill's Case Files series"--Provided by publisher

Contents:
General pediatrics
Neonatal medicine
Adolescent medicine
Nutrition
Fluid, electrolyte, and pH management
Pulmonology
Infectious disease
Immunology, allergy, and rheumatology
Neurology
Dermatology
Cardiology
Hematology
Oncology
Gastroenterology
Endocrinology
Orthopedics
Nephrology
Urology
Genetic disorders
Emergency medicine: the acutely ill and injured child.

Contents:
Psychotic disorders
Bipolar disorders
Depressive disorders
Anxiety disorders
Trauma- and stressor- related disorders
Obessive-compulsive and related disorders
Eating disorders
Neurodevelopmental disorders and child and adolescent psychiatry
Neurocognitive disorders
Substance-related disorders
Personality disorders
Miscellaneous disorders
Special clinical topics
Legal issues
Antipsychotics
Antidepressants and somatic therapies
Mood stabilizers
Anxiolytics
Miscellaneous medications
Major adverse drug reactions
Psychological theory and psychotherapy.

Contents:
Basic concepts and indications for transplantation
Types of transplants and sources of stem cells
Pretransplant issues
Transplant preparative regimens, cellular infusion, acute complications, and engraftment
Graft-versus-host disease
Post-transplant issues
Survivorship issues
Professional practice.

Summary: Board Review in Preventive Medicine and Public Health prepares physicians for their initial and recertification board exams in the related specialties of preventive, occupational and aerospace medicine. Formatted in a question and answer based style that imitates material on specialty exams, each question is linked to a detailed answer. The book contains over 640 question and answer sets covering areas such as general public health, health management, health law, community health, infectious disease, clinical preventive medicine, occupational medicine, aerospace medicine, environmental medicine, correctional (prison) medicine, emergency preparedness, epidemiology and biostatistics. The book is an essential board preparation for physicians with a background in the fields of preventive medicine, occupational medicine, and aerospace medicine. It is also useful for medical students, public health students and those wishing to gain an understanding of the key points in these fields.

Contents:
Internal medicine
Surgery
Obstetrics and gynecology
Pediatrics
Family medicine
Psychiatry
Neurology
Dermatology
Ophthalmology
Radiology
Emergency medicine
Ethics/law/clinical studies.

Summary: Exam preparation for third year medical students in clinical rotations: family medicine, internal medicine, neurology, OBGYN, pediatrics, psychiatry, and surgery.

Contents:
AACN Adult-Gerontology Acute Care NP
AANP Family Nurse Practitioner
ABA BASIC
ABFAS Foot
ABFAS Rearfoot and Ankle
ABPM Qualification Exam
Addiction Medicine
Adult-Gerontology Primary Care NP
ANCC Adult-Gerontology Acute Care NP
ANCC Family Nurse Practitioner
Anesthesiology Advanced
Anesthesiology MOC
APMLE Part 1
APMLE Part 2
APMLE Part 3
ARRT Mock Exam
ARRT Radiography
Bioanalysis (ABB)
Cardiology
Cardiology MOC
Certified Nurse Midwife
Child Neurology
Child Neurology MOC
Child Psychiatry
Child Psychiatry MOC
COMLEX Level 1
COMVEX
CREOG
Critical Care Nursing
CST Mock Exam
Dermatology
Dermatology MOC
Echocardiography
Emergency Medicine
Emergency Medicine MOC
Emergency Medicine Shelf Exam
ENT Oral Boards
Family Medicine
Family Medicine MOC
Family Medicine Shelf Exam
Gastroenterology
Gastroenterology MOC
Geriatric Medicine
Hematology and Oncology
Hematology and Oncology MOC
Hospice & Palliative Medicine
Hospital Medicine MOC
Infectious Disease
Internal Medicine
Internal Medicine MOC
Internal Medicine Shelf Exam
NAPLEX
NBDE Part I
NBDE Part II
NBDHE
NCLEX-PN
NCLEX-RN
Nephrology
Nephrology MOC
Neurology
Neurology MOC
Neurology Shelf Exam
NPLEX Part 1
NPLEX Part 2
Nuclear Cardiology
OBGYN
OBGYN MOC
OBGYN Shelf Exam
Ophthalmology
Opioid Prescribing, Substance Abuse, and Pain Managment
Orthopedic Surgery
Orthopedic Surgery MOC
Otolarynology
Otolaryngology MOC
Pain Managment
Pain Management, Palliative and End of Life Care
Pain Medicine
Pain Medicine MOC
PANCE
Pathology
Pathology MOC
Pediatric Cardiology Certification
Pediatric Cardiology Certification MOC
Pediatric Nurse Practitioner
Pediatric Nurse Practitioner-Acute Care
Pediatrics
Pediatrics MOC
Pediatrics Shelf Exam
Pharmacotherapeutics
Physical Medicine & Rehabilitation
Physical Medicine & Rehabilitation MOC
Preventative Medicine
Preventive Medicine MOC
Psychiatric-Mental Health Nurse Practitioner
Psychiatry
Psychiatry MOC
Psychiatry Shelf Exam
Psychiatry Vignettes
Pulmonary and Critical Care Medicine
Pulmonary and Critical Care Medicine MOC
Radiology
Radiology Certifying Exam
Radiology MOC
Rheumatology
Sleep Medicine
Sleep Medicine MOC
SPEX
Sports Medicine
Surgery
Surgery MOC
Surgery Shelf Exam
Surgical Technologist
Urology
USMLE Step 1
USMLE Step 2
USMLE Step 3.

Summary: "The only review book currently available in this complex field, Brain Injury Medicine: Board Review focuses on the prevention, diagnosis, treatment, and management of individuals with varying severity levels of brain injury. Focused, high-yield content prepares you for success on exams and in practice, with up-to-date coverage of traumatic brain injury (TBI), stroke, CNS neoplasms, anoxic brain injury, and other brain disorders. This unique review tool is ideal for residents, fellows, and practitioners studying or working in the field and preparing to take the brain injury medicine exam"--Publisher's description.

Contents:
Section 1: Brain anatomy and physiology. Neuroanatomy correlates
Pathophysiology and basic sciences
Section 2: Traumatic brain injury severity & patterns. Mild TBI (concussion), moderate to severe TBI
TBI by pattern: penetrating, non- penetrating, blast injury
Brain death criteria
Section 3: Epidemiology and risk factors. Epidemiology and public health & prevention
Proteomic, genetic, and epigenetic biomarkers in TBI
Prognosis and recovery patterns
Section 4: Emergency Room and intensive care management. Prehospital care
Acute emergency management (non-surgical care & surgical care)
Critical care management
Complications
Section 5: Evaluation and diagnosis. Physical examination, signs and symptoms
Diagnostic procedures and electrophysiology
Neuroimaging (structural and functional)
Functional evaluation
Intensity of services, specialized rehabilitation therapies, interdisciplinary team management
Section 6: Complications and management. Cardiovascular and pulmonary
GI and nutrition
Genitourinary
Soft tissue and orthopedic condition
Pain
Neuroendocrine/ metabolic/ hormonal
Paroxysmal sympathetic hyperactivity
Spasticity & contractures
Post-traumatic hydrocephalus
Cranial nerve disorders
Seizure disorder
Movement disorder
Pressure injuries, bed rest and deconditioning
Dysphagia and aspiration
Speech and language
Cognitive dysfunction
Neurosensory dysfunction
Emotional dyscontrol
Agitation and restlessness
Sleep dysfunction and fatigue
Mood disorders
PTSD
Suicide, personality d/o, anxiety
Substance abuse
Sexuality and intimacy
Section 7: Rehabilitation concepts. Therapeutic exercise/rehabilitation
Assistive technology
Community re-entry
Involving family in rehabilitation: role of physiatry
Section 8: Special topics. Pediatric TBI
Geriatric TBI
Military TBI
Sports concussion
Gender specific issues in TBI
Post-concussion syndrome assessment, management and Rx
Nontraumatic brain injury
Dual diagnosis: TBI and SCI
Anoxic brain injury
Doc and rehabilitation
Complementary alternative therapies
Neuromodulation & neuroprosthetics
Neuropharmacology
Neurodegeneration and dementia
Basic statistics/research methods
Ethics and law.

Summary: Prepare for your ABFM boards - find your weak spots and eliminate them now! Handy in print and as an eBook, Bratton's Family Medicine Board Review is the essential practice test for those facing the ABFM exams. Opening with the basic requirements of the ABFM Board certification process, it provides crucial background information on all three AFBM exams and their formats, describes a typical exam day, and offers excellent test-taking advice{u2014}taking the mystery out of the exam process.

Contents:
Care of the adult patient
Care of children & adolescents
Care of the female patient (including maternity care)
Mental health/community health
Emergent and surgical care
Care of the elderly patient
Pictorial atlas.

Contents:
Section 1. Fundamentals of Cardiovascular Disease : Genetics and Personalized Medicine : Evaluation of the Patient.
Section 2. Heart Failure Arrhythmias, Sudden Death, and Syncope.
Section 3. Preventive Cardiology Atherosclerotic Cardiovascular Disease.
Section 4. Diseases of the Heart, Pericardium, and Pulmonary Vascular Bed.
Section 5. Cardiovascular Disease in Special Populations Cardiovascular Disease and Disorders of Other Organs.

Summary: "Breast Care Certification Review, Second Edition is the ultimate learning package designed to help prepare oncology nurses to become certified in caring for patients with breast cancer. Thoroughly updated to address the 2018 updates to the Certified Breast Care Nurse (CBCN) examination, it provides numerous practice questions with comprehensive answer rationales making it the essential guide for nurses planning to sit for the CBCN examination"--Provided by publisher.

Contents:
Coordination of care
Diagnosis and staging
Treatment modalities : local and systemic
Nursing practice
Psychosocial and spiritual.

Contents:
Regulatory/standards of care
Breast cancer screening
Diagnostic breast imaging, breast pathology, and breast imaging findings
Breast intervention
Breast imaging physics and safety.