PubMed

PubMed is a free online database of references on life sciences.U.S. National Center for Biotechnology Information (NCBI), PubMed Help; retrieved 2012-1-27. It was established in January 1996. The United States National Library of Medicine (NLM) at the National Institutes of Health (NIH) maintains the database.

Each record in the PubMed database is assigned a special number to identify it. This is the PMID, an acronym for "PubMed IDentifier" number.Mount Sinai School of Medicine, "What is a PubMed ID (PMID)?; retrieved 2012-1-27. PMIDs do not change over time and they are never reused.NCBI, PubMed Help, FAQS → PMID [PMID]; retrieved 2012-1-27. Any PMID is only a number. The PMID tells the reader nothing about the type or quality of the content of any publication.

References

Other websites

 PubMed Online Tutorials
 PubMed Help
 Other PubMed Search Engines Resource Guide 

Category:Public databases
Category:Medical publications
Category:American science websites