Q. Where can I find preprints?

Preprints are complete and public drafts of scientific documents, not yet certified by peer review. These documents ensure that the findings of the research community are widely disseminated, priorities of discoveries are established and they invite feedback and discussion to help improve the work.¹

More frequently, preprints are being indexed by popular databases. See the instructions below for isolating preprints in PubMed and Scopus. Researchers can also search preprint servers directly. SPI-Hub provides a hyperlinked list of preprint servers designed for various disciplines.

PubMed

PubMed includes preprints posted to eligible preprint servers that report NIH funding.

Eligible servers: MedRxiv, bioRxiv, arXiv, and Research Square

How to search: Follow search terms with "AND preprint[pt]".

• Example: herceptin AND preprint[pt]

Scopus

Scopus includes preprints posted to eligible servers 2017-present (NIH funding is not required for inclusion).

Eligible servers: arXiv, ChemRxiv, bioRxiv, medRxiv, SSRN, TechRxiv, and Research Square

How to search: Conduct a topic search and select the Preprints tab from the search results page to view preprints

1. PubMed Central. NIH Preprint Pilot. https://www.ncbi.nlm.nih.gov/pmc/about/nihpreprints/#what