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http://www.ncbi.nlm.nih.gov/pubmed/ - http://www.ncbi.nlm.nih.gov/pubmed/
National Library of Medicine's medline and pre-medline database. |
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MedlinePlus - http://www.nlm.nih.gov/medlineplus/
Health information from the National Library of Medicine. Easy access to Medline and Health topics, medical dictionaries, directories and publications. |
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Cos Medline - http://medline.cos.com/
A massive database of nearly 80 million records of data on life sciences and biomedical bibliographic information. Subscription required. |
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Medscape - http://www.medscape.com/
Features medical journal articles, images, case reports, medical news, free Medline, CME, and drug searching. |
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Infotrieve - http://www4.infotrieve.com/
Free Medline search yearwise with full-text document delivery. |