Unverified50% confidenceFactExact time
PubMed is a free biomedical literature database maintained by the U.S. National Library of Medicine (NLM).
1
Sources
50%
Confidence
Long-term
Relevance
9/23/2026
First Seen
Sources
Related Entities
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UnverifiedPubMed is maintained by the National Center for Biotechnology Information (NCBI) of the U.S. National Library of Medicine, focuses on the life sciences and medicine, and covers approximately 35 million records.74% similarUnverifiedRead the Docs has long served the open-source community in a free or low-cost manner51% similar
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