PMC:6988272 / 3008-3165 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/6988272","sourcedb":"PMC","sourceid":"6988272","source_url":"https://www.ncbi.nlm.nih.gov/pmc/6988272","text":"cases without identified pathogenic agents that were reported in late December 2019 [12]. Most of the early cases were reportedly either shop owners, largely","tracks":[]}