Note: not all journals with articles in PubMed are indexed for MEDLINE.
20 To check if a journal is indexed for MEDLINE, check the journal’s page in the NLM Catalog—you can do this by following the link for journal in the article’s record in PubMed. If the NLM Catalog listing says the journal is “Currently indexed for MEDLINE,” this means that all articles published in this journal will appear in PubMed.