TOXNET, a cluster of databases on toxicology, hazardous chemicals, and related areas.
Clinical Alerts and Advisories, Clinical alerts are provided to expedite the release of findings from the NIH-funded clinical trials where such release could significantly affect morbidity and mortality.
PubMed Central (PMC), the U.S. National Library of Medicine's digital archive of life sciences journal literature.
NLM Gateway, The NLM Gateway allows users to search in multiple retrieval systems at the U.S. National Library of Medicine (NLM). The current Gateway searches MEDLINE/PubMed, OLDMEDLINE, LOCATORplus, MEDLINEplus, ClinicalTrials.gov, DIRLINE, Meeting Abstracts, and HSRProj.