PMC:7077337 / 4927-5089 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T30","span":{"begin":3,"end":10},"obj":"http://purl.obolibrary.org/obo/NCBITaxon_33208"}],"text":"ad animals in over one thousand stalls in constant close contact; however, whether this market was the origin of the outbreak remains unknown [9]. On 31 December "}