If you have a disease or medical condition, go to a few of the big websites. Go to the library where they’ll have at least one book on most medical conditions, #610-619 of the Dewey Decimal System, R in the Library of Congress system. 610. Medical Sciences. 611. Human anatomy. 612. Human physiology. 613. Hygiene, fitness, diet. 614. Public health. 615. Therapeutics and pharmacology. 616. Medicine, diseases. 617. Surgery. 618. Specialized medicine, women, childbirth, children. 619. Comparative and experimental medicine. R, Medicine. RB, Pathology. RK, Dentistry. RT, Nursing. There are a lot of healthcare books at #361-362 at the library: Arthritis, 616.716-72. AIDS, 616.97, RC607. Allergies, asthma, 619.97. Arthritis, 616.72. Attention deficit disorder, 616.8589. Back problems, 617.564, RD798-RD7771. Biology, body, physiology, 612, QP38. Biology, general, 574, QH313. Birth control, sex, 613.9.