A preprint is the version of a research paper prior to peer review, formatting, copy editing, and acceptance by a journal for publication. Preprints are often deposited into preprint servers or online repositories where they are free for anyone to access. Preprints of medical articles may be found in the following preprint servers:
In Web of Science, choose the Preprint Citation Index in the menu of databases.
Here are some platforms that not only feature preprints, but also solicit peer review from the global community of peers:
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