James A. Purdy

PREFACE Radiation oncology is a discipline of humán medicine which addresses the causes, prevention, and treatment of humán cancer with special emphasis on the role of ionizing radiation. Approximately 60% of all cancer patients receive radiation therapy as a component of their treatment....

Approximately 60% of all cancer patients in the United States receive radiation therapy each year as therapy or for palliation, or as an adjunct to surgery or chemotherapy. In 1997, according to American Cancer Society estimates, 1.4 millión new cases of invasive cancer, 50,000 new cases of...