"I would look elsewhere than conventional medicine for help if I
contracted a severe viral disease like hepatitis or polio, or a
metabolic disease like diabetes. I would not seek allopathic (M.D.)
treatment for cancer, except for a few varieties, or for such chronic
ailments as arthritis, asthma, hypertension, MS, or for many other
chronic diseases of the digestive, circulatory, musculoskeletal, and
nervous systems. Although allopaths give lip service to the concept of
preventive medicine, for practical purposes they are unable to prevent
most of the diseases that disable and kill people today."

Andrew Weil, M.D. (Harvard Medical) "Health and Healing", (pg.83)