PMC:7324763 / 12370-12381 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T271","span":{"begin":5,"end":7},"obj":"CL:0000540"},{"id":"T36491","span":{"begin":5,"end":7},"obj":"CL:0000540"}],"text":"49H+ NK cel"}