MEDLINE (EBSCOhost) This link opens in a new windowMEDLINE, from EBSCOhost, provides authoritative medical information on medicine, nursing, dentistry, veterinary medicine, the health care system, pre-clinical sciences, and much more. Created by the National Library of Medicine (NLM), MEDLINE uses MeSH (Medical Subject Headings) indexing with tree, tree hierarchy, subheadings, and explosion capabilities to search citations from over 5,400 current biomedical journals.