PMC:7799291 / 8367-8909 JSONTXT

{"target":"http://pubannotation.org/docs/sourcedb/PMC/sourceid/7799291","sourcedb":"PMC","sourceid":"7799291","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7799291","text":"LitCovid is a curated set of open access COVID-19 papers from PubMed [16], containing 52 000 papers at the time of writing and growing. Several text mining systems described in Section on “Text mining systems” use LitCovid as a source of data. LitCovid initially provided a much-needed complementary set of papers to CORD-19, since the early releases of CORD-19 focused on PMC, bioRxiv and medRxiv as sources and did not include papers from PubMed. However, the releases of CORD-19 published after 19 May include PubMed as a source of papers.","tracks":[]}