What's in PubMed?
- Over 23 million records representing articles in the biomedical literature and a small selection of items from the NCBI Books database.
- Most PubMed records are MEDLINE citations.
- Other records include those in different stages of processing (including records provided directly from the journal publisher) but destined to be MEDLINE citations.
- A relatively small number of records that are included in PubMed but not selected for MEDLINE.
What is MEDLINE?
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