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A guide to PubMed, an open-access database for health and biomedical research.

An external file that holds a picture, illustration, etc.Object name is i1536-5050-095-04-0416-f04.jpgThe National Library of Medicine has been collecting and organizing citations of biomedical literature since its founding. For more on the history of these systems, see the articles below.



Image: IBM magnetic tape drives of the IBM 370/155 with NLM staff
Source: The development of the Medical Literature Analysis and Retrieval System (MEDLARS). Journal of the Medical Library Association, 95(4), 416–425.