PubMed is an — for searching 30 million journal articles in two databases
interface
Medline
(3)
-over 26 million references
-from 2,500 journals
-subject headings are included
PubMed Central
(2)
MeSH terms are a special vocabulary used to
index (tag)
catalog (shelve)
search (retrieve)
index
a subject specialist reads the article and assigns MeSH terms to the electronic record
cataloging
organizes articles by their MeSH
searching
enter the MeSH in the search strategy
find articles