PubMed
PubMed comprises more than 29 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
GreenMedInfo
The worlds’s largest, holistic medicine database. Latest abstracts imported directly from Pubmed.gov, rated & indexed.
U.S. Chiropractic Directory
The US Chiropractic Directory only posts information about chiropractic that has been proven in a published research setting. Search by any topic, condition, symptoms, etc.