<unk>  (Medical Literature Analysis and Retrieval System Online) is an international literature database of life sciences and biomedical information. It covers the fields of medicine, nursing, pharmacy, dentistry, veterinary medicine, and health care.<unk>  covers much of the literature in biology and biochemistry, and fields with no direct medical connection, such as molecular evolution. Listing of an article in<unk>  does not mean endorsement of that article.
Compiled by the U.S. National Library of Medicine (NLM),<unk>  is freely available on the Internet and searchable via PubMed and NLM's National Center for Biotechnology Information's Entrez system.
MEDLINE
Cybernetics
UniProt
Swiss-Prot
EVAR
ISREC
ISFET
MACS