"For over 30 years, this title sets the standard as a practical guide for physicians, nurses, pharmacists and other practitioners involved in all forms of clinical and public health research. It presents the epidemiologic concepts in a reader-friendly way and suggests common sense approaches to the challenging judgments involved in designing, funding and implementing a study. Translated in many languages over the years, it is a manual for clinical research in it various flavors: clinical trials, observational epidemiology, translated science, patient-oriented research. Epidemiologic- terms and principles, presented advanced conceptual material in a practical and reader friendly way and suggested common sense approaches to many judgments involved in designing a study"-- Provided by publisher.