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A cure for cancer exists through the use of yoga, a San Antonio, Texas, cancer specialist said during a seminar in Oklahoma City in the 1980s.

But physicians refused to acknowledge the cure, said Col. Hansa Raval, M.D., a pathologist with the United States Army. Dr. Raval said her work in cytotechnology _ a diagnostic branch of medicine designed to pinpoint early stages of cancer _ was fruitless until she began researching the use of non-conventional methods of treatment.