PMC:7253482 / 22943-22965 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T77073","span":{"begin":3,"end":10},"obj":"IN"},{"id":"T67807","span":{"begin":11,"end":14},"obj":"DT"}],"text":"s.\nWhether the restric"}