Pubmed Medline
Description: National Library of Medicine's medline and pre-medline database.
www.ncbi.nlm.nih.gov/PubMed/
 
US National Library of Medicine
Description: The world's largest medical library. It collects materials in all major areas of the health sciences...
www.nlm.nih.gov/
 
Welcome to Medscape
Description: Features medical journal articles, images, case reports, medical news, free Medline, CME, and drug...
www.medscape.com/
 
HealthGate
Description: Provides online healthcare information designed to help physicians, other healthcare professionals,...
www.healthgate.com/