Introduction to Stereotactic Radiosurgery and Stereotactic Body Radiotherapy -- Part I: Radiobiology of Stereotactic Radiosurgery and Stereotactic Body Radiotherapy -- Radiobiology of Stereotactic Radiosurgery and Stereotactic Body Radiotherapy -- Part II: Physics of Stereotactic Radiosurgery and Stereotactic Body Radiotherapy -- Physics of Stereotactic Radiosurgery and Stereotactic Body Radiotherapy -- Part III: Clinical Applications -- Intracranial Tumors -- Spine -- Head and Neck -- Lung -- Digestive System -- Genitourinary Sites -- Gynecologic Sites -- Soft Tissue Sarcoma -- Oligometastases -- Appendix A: Dose-Volume Criteria.