PMC:7205724 / 22303-22314
Annnotations
LitCovid-sample-Enju
{"project":"LitCovid-sample-Enju","denotations":[{"id":"T61388","span":{"begin":1,"end":4},"obj":"CD"},{"id":"T66576","span":{"begin":5,"end":10},"obj":"NNS"}],"relations":[{"id":"R37501","pred":"arg1Of","subj":"T66576","obj":"T61388"}],"text":" two years "}