Some search topics are so broad or complicated, it can be hard to come up with a search strategy on your own. So use one of the pre-defined filters created by expert searchers. A full list is available from the National Library of Medicine on their Directory of Topic-Specific PubMed Queries page. Select pre-formulated search strategies below from the NLM and other sources.
PubMed® Special Queries
Last Reviewed: September 8, 2020