PMC:7195088 / 19818-19885
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T98","span":{"begin":34,"end":35},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":" recruiting). Primary endpoints: (a) positive to negative swabs at "}