PubMed is part of Medline - a large biomedical database of over 30 million records. It includes information covering articles and papers from academic journals covering medicine, nursing, pharmacy, health care, biology and biochemistry.
The National Library of Medicine’s (NLM) Medical Subject Headings (MeSH) is the controlled vocabulary thesaurus used for indexing articles for PubMed.
Features in MeSH
• Contains over 28,000 descriptors.
• Over 90,000 entry terms.
• 240,000 Supplementary Concept Records to specific chemicals, diseases, and drug protocols.
• MeSH terms can be used to improve your searches and help broaden or narrow your results.
Type your search terms in the search box using only keywords. Be simple but specific. (PubMed also suggests search terms based on common searches.)