MeSH (Medical Subject Headings) is the NLM (U. S. National Library of Medicine) controlled vocabulary used to manually index articles for MEDLINE/PubMed1 S. J. Nelson and et al. The MeSH translation maintenance system: structure, interface design, and implementation. Stud. Health Technol. Inform., 107: 67-69, 2004. and is a collection of a comprehensive life science vocabulary.