PMC:7337742 / 395-445 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T5","span":{"begin":8,"end":22},"obj":"UBERON:0004535"},{"id":"T79514","span":{"begin":8,"end":22},"obj":"UBERON:0004535"}],"text":" urgent cardiovascular surgery, whereas most hospi"}