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Mayo Clinic — Comprehensive medical diagnosis and treatment; locations and services; request an appointment.

Trusted medical information to encourage healthy living. Enjoy free health tools and view detailed doctor-reviewed information about diseases, medical symptoms, treatments, drugs, and nutrition.

Read doctor-produced health and medical information written for you to make informed decisions about your health concerns.

- Your complete guide on all things health including fitness, sex, diseases, weight loss, home remedies, pregnancy, healthy recipes, news and much more. You can also ask queries, search for your symptoms and watch the latest health videos at TheHealt...

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world

The New England Journal of Medicine (NEJM) is a weekly general medical journal that publishes new medical research and review articles, and editorial opinion on a wide variety of topics of importance to biomedical science and clinical practice.

Lung cancer is the leading cause of cancer deaths worldwide. Despite being so common, navigating the health care system from lung cancer diagnosis to lung cancer treatment can be a lonely and frightening time. In this About.com health guide we

The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award-winning expertise in content, community services, expert co...

Dr. John Grohol

LIVESTRONG offers trusted health information and health news on diseases, symptoms, drugs, treatments and more. Get healthy with LIVESTRONG