PubMed is the National Library of Medicine's Medline database that provides abstracts and indexing for biomedical journals published in the U.S. and in foreign countries. It includes additional older citations and out of scope citations from Medline journals. It extensively covers also chemistry journals
Medicine, nursing, dentistry, veterinary medicine, psychiatry, pre-clinical sciences, medical education, public health, health care planning and administration of services. Also includes additional life science journals.