What Europe PMC covers
Europe PMC is the European equivalent of PubMed Central, run by EMBL-EBI. It indexes more than 42 million life-science records — including roughly 7 million open-access full-text articles, 4 million preprints from bioRxiv/medRxiv, patents, clinical guidelines, and grants.
For European biomedical research, preprints, and open-access full-text, Europe PMC has broader coverage than PubMed alone. Relaylit runs every digest against Europe PMC and five other sources so you see preprints days-to-weeks before they appear in PubMed.