PMC:7324763 / 1603-1617 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T28","span":{"begin":0,"end":14},"obj":"CL:0000623"},{"id":"T46302","span":{"begin":0,"end":14},"obj":"CL:0000623"}],"text":"Natural Killer"}