February 14, 2014

The file mtrees2003.txt is the NLM MeSH (Medical Subject Headings)
file for the year 2003. It is presently out of date for clinical
purposes and should not be used for same. It is used here only
for purposes of illustrating indexing techniques and research.

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Telephone: 1-888-FINDNLM (1-888-346-3656) or (301) 594-5983
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