WebMD

WebMD provides valuable health information, tools for managing your health, and support to those who seek information. You can trust that our content is timely and credible.

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Natural Medicines Database

The most authoritative resource available on dietary supplements, natural medicines, and complementary alternative and integrative therapies.

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Merck Manual

From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world.

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Medscape

Medscape from WebMD is a part of WebMD Health Professional Network that includes theHeart.org and eMedicine.com.

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Epocrates Online

Epocrates, Inc. is an American company based in San Mateo, California that makes various mobile health software applications.

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Clinical Key

ClinicalKey is a medical search engine and database tool owned by medical and scientific publishing company Elsevier that offers access to the medical library published by that company.

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