PMC:7358770 / 13803-13814 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T51389","span":{"begin":5,"end":7},"obj":"CHEBI:8502;CHEBI:8502"},{"id":"T67375","span":{"begin":7,"end":8},"obj":"CHEBI:62946;CHEBI:62946"},{"id":"T40926","span":{"begin":8,"end":9},"obj":"CHEBI:86228;CHEBI:86228"}],"text":"were used t"}