General Health and Nutrition
Alternative Medicine
Acupuncture
American Academy of Family Physicians
American Hyperlexia Association
Action on Smoking and Health (ASH)
American Lung Association
Blindness.org
Facts for Families
Health World Online
Life Matters
Medscape
National Eye Institute
National Institutes of Health
New England Journal of Medicine
National Organization for Rare Disorders
Reuters Health
World Health Organization
Disease Information
Alzheimer's Disease Education
American Cancer Society
American Diabetes Association
American Heart Association
Arthritus Foundation
Centers for Disease Control
CenterWatch - Clinical Trials Listing Service
Merck Manuals
U.S. Food and Drug Administration
Mental Health
American Psychological Association
Behavior Online
Internet Mental Health
Center for Study of Autism
Psychology.net
National Mental Health Center
