- Ideally, a journal will be indexed in MEDLINE. According to the MSK library, "[i]n order to be included in Medline, a journal has to undergo a rather rigorous and selective review process." That's the theory, anyway.
- "All journals that are included in their entirety in PubMed Central (PMC), for example PLoS, are automatically indexed in PubMed (but not necessarily in Medline, so visibility is OK but could be better)."
- A journal can deposit articles in PubMed Central (PMC), and the article will be indexed in PubMed, but "[t]he journal is otherwise not officially indexed in Medline nor PubMed. This implies the least potential for visibility ... ."
In: MEDLINE: v16n1, Winter 2012-
PubMed: v9n1, Winter 2005-