PMC:7337742 / 34-67
Annnotations
LitCovid-PMC-OGER-BB
{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T1","span":{"begin":1,"end":8},"obj":"UBERON:0000948"},{"id":"T109","span":{"begin":4,"end":13},"obj":"UBERON:0000916"},{"id":"T25518","span":{"begin":1,"end":8},"obj":"UBERON:0000948"}],"text":" cardiac and vascular surgery dur"}