PubMed comprises over 20 million citations for bio-medical literature from MEDLINE, life science journals, and online books. PubMed citations and abstracts include the fields of medicine, nursing, dentistry, veterinary medicine, the health care system, and pre-clinical sciences.
Looking for information on a specific chemical? ChemID is a dictionary of over 400,000 chemicals (names, synonyms, and structures). ChemIDplus includes links to NLM and other databases and resources, including links to federal, state and international agencies. ChemIDplus Lite is designed for simple searching on name or registry
A starting point for searching core public health literature with centralized access to over 800 publications with over 500 in full-text. It also covers a wide variety of disciplines ranging from social sciences and biological sciences to business.