PubMed comprises more than 22 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
Finding Retracted Publications and Retraction Notices in PubMed
When you do a search in PubMed for a topic, you will see filtering options on the left column of the results page. If you click the button that says "Additional filters", you'll see more options - this is where you can find the filters related to retractions.
Here you will see two options: Retracted Publication, and Retraction of Publication. This is a little confusing, but here is where the two differ:
Retracted Publication - the article that was retracted
Retraction of Publication - the notice in the journal that the article is retracted; if available, this is where you will find a detailed explanation of why the article was retracted
Once you choose those options, you'll see that they appear as check boxes in the filters on the left column of the results page. Clicking both will display only those results matching your keywords that are retracted articles, or notices of retracted articles.
Here is an example of an article that has been retracted. Note that there is big, red font alerting you to the fact that this article has been retracted! It has also been cross-linked with its retraction notice.
Here is the retraction notice for the previous article. Take a moment and read the reasoning behind this retraction from the journal publisher.
Please note that the retraction notice may not contain this information - many notices are a brief statement that the article has been retracted. If that's the case, use Google or Retraction Watch to see if you can discover more information about this retraction.