PMC:7314078 / 52-68
Annnotations
testtesttest
{"project":"testtesttest","denotations":[{"id":"T1","span":{"begin":9,"end":15},"obj":"Body_part"}],"attributes":[{"id":"A1","pred":"uberon_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/UBERON_0000467"}],"text":" surgery system "}