MEDLINE
National Library of Medicine
MEDLINE, the National Library of Medicine's (NLM), is the premier bibliographic database. It contains more than 29,000,000 references to journal articles in life sciences, with a focus on biomedicine. MEDLINE's distinctive feature is the NLM Medical Subject Headings (MeSH) indexing. MEDLINE, a primary component of PubMed (a literature database created and maintained by NLM National Center for Biotechnology Information [NCBI], is the primary component). MEDLINE, the online counterpart of the MEDical Literature Analysis and Retrieval System(MEDLARS), was established in 1964. (See MEDLINE history). The majority of journals selected for MEDLINE are based on the recommendation from the Literature Selection Technical Review Committee, an NIH-chartered advisory panel of external experts. Time coverage: MEDLINE covers literature published between 1966 and present. However, it also includes selected literature that was published before that time.