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PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

Science.gov is a gateway to government science information provided by U.S. Government science agencies, including research and development results.

Medical Dictionary is intended for use by healthcare consumers, students, and professionals as well as anyone who wants to keep up with the burgeoning array of terminology found in today’s medical news. By staying clear of jargon, the dictionary o...

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

SpringerImages provides a new way to access hard-to-find scientific content of the utmost value to researchers: images.

The eMedicine point-of-care clinical reference features up-to-date, searchable, peer-reviewed medical articles organized in specialty-focused textbooks, and is continuously updated with practice-changing evidence culled daily from the medical literat...

From molecules to physiology