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PubMed (Public MEDLINE) is a free resource developed and maintained by the National Center for Biotechnology Information (NCBI) at the National Library of Medicine® (NLM). PubMed provides:
- Free access to MEDLINE, NLM's bibliographic database of citations and abstracts in the fields of medicine, nursing, dentistry, veterinary medicine, health care systems, and preclinical sciences.
- Coverage extends back to 1946 with over 30 million citations from approximately 5,400 biomedical journals published in the United States and worldwide.