| MEDLINE/PubMed Resources Guide
| Return to PubMed
> Distance Education Resources
> PubMed Online Training
If both options are checked, your retrieval will include studies of humans, studies of other animals, and studies of both humans and animals.
This filter will restrict your search to indexed records.
< Previous Section | Next Section >
Copyright, Privacy, Accessibility, Site Map, Viewers and Players
U.S. National Library of Medicine, 8600 Rockville Pike, Bethesda, MD 20894
National Institutes of Health, Health & Human Services
Freedom of Information Act, Contact Us
Last reviewed: 09 October 2014Last updated: 30 August 2013First published: 01 March 2001Metadata| Permanence level: Permanent: Dynamic Content