There are two ways you can search the Medline database. See your options below:
* Medical Subject Headings (or MeSH) tell you what each article is about (think hashtags!) Use MeSH to search PubMed in a very targeted way.
* In PubMed, click on Advanced (below the search box) top open up more search options:
* Find definitions of the article types (a.k.a. "publication types") used in PubMed. Click on "Additional Filters" in the PubMed filters to see all the article types.
You can accomplish this two different ways:
Ulrich's International Periodicals Directory can help you answer these questions. Simply search the journal title to determine if it is peer reviewed/refereed (look for the tiny referee shirt). Ulrich's will also tell you if the title is a trade magazine or journal.