Education

LitSource

Find biomedical papers and check reference records

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What is LitSource?

  • Education
  • Freemium
  • Launched week 41, 2026

LitSource helps biomedical researchers find candidate papers for a claim or paragraph and check existing references against scholarly records. Search available evidence from PubMed, PMC, Crossref, OpenAlex and Semantic Scholar, inspect source context, and export references. Citation checking flags missing records, DOI conflicts and metadata differences for manual review. A matched record does not prove support for a claim, and a missing record does not prove fabrication. Check the original paper before citing.

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Someone answered our questions about LitSource.

Why use LitSource instead of manually searching PubMed and Crossref when writing biomedical papers?

The useful starting point is often a sentence in a draft, rather than a search query. LitSource helps turn that sentence into candidate papers, then lets the writer inspect available evidence. The second task is different: checking whether references in an existing draft match scholarly records, including DOI and metadata conflicts. Keeping both tasks together reduces the switching between source finding and reference checking. It does not replace reading the original paper: an authentic reference can still be a poor citation for a particular claim.

LitSource alternatives

The education tools listed here closest to LitSource, by shared categories and tags and by how alike the two descriptions read. Not a ranking against LitSource — open one and judge for yourself.

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