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AOL Health - Find health advice, information about diseases, diet tips, calorie and body mass calculators, chats and message boards.
BBC Health - Features current news plus archives, guides by subject, "Ask a Doctor" inquiry feature, a searchable conditions database, message board, and e-mail newsletter subscription.
PDG Health - Find health advice, drug news and medical information.
The Merck Manual - Online version of The Merck Manual of Diagnosis and Therapy
About.com: Buying Prescription Drugs in Mexico - Offers the pros and cons and further considerations including bringing the medications back through customs.
WebMD - Comprehensive health resources for consumers, physicians, nurses, and educators. Includes news, chat forums, health quizzes and consumer product updates.