Bookshelf, the books division of the NLM Literature Archive (LitArch) at the National Center for Biotechnology Information (NCBI), is an online searchable collection of books, reports, databases, and other scholarly literature in biology, medicine, and the life sciences.
Main sources come from the American Heritage® Stedman's Medical Dictionary, Second Edition and Dorland's Medical Dictionary for Health Care Consumers, which provide authoritative descriptions of medical conditions, medications, anatomical terms, noted medical personalities and much more.
MedlinePlus brings you reliable, up-to-date information about diseases, conditions, and wellness issues in language you can understand, anytime, anywhere, for free.
You can use MedlinePlus to learn about the latest treatments, look up information on a drug or supplement, find out the meanings of words, or view medical videos or illustrations. You can also get links to the latest medical research on your topic or find out about clinical trials on a disease or condition.