PMC:7205724 / 1202-1217
Annnotations
LitCovid-sample-Enju
{"project":"LitCovid-sample-Enju","denotations":[{"id":"T183","span":{"begin":2,"end":8},"obj":"NNS"},{"id":"T184","span":{"begin":9,"end":13},"obj":"WDT"}],"relations":[{"id":"R175","pred":"arg1Of","subj":"T183","obj":"T184"}],"text":"l trials that s"}