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Health & Medicine

Merck Manuals

Find information on medical topics, symptoms, drugs, procedures, news and more, written in everyday language.

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Merck Veterinary Manuals

Find information on animal health topics, written for the veterinary professional.

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MedlinePlus

MedlinePlus is a free online health information resource for patients and their families and friends. It is a service of the National Library of Medicine (NLM), the world’s largest medical library, and a part of the National Institutes of Health (NIH). It offers information on health conditions, medical tests, medications, dietary supplements, and healthy recipes.

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