PMC:1087847 / 3243-3246 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1493","span":{"begin":0,"end":3},"obj":"NN"}],"text":"kDa"}

{"project":"biosemtest","denotations":[{"id":"T1039","span":{"begin":0,"end":3},"obj":"UMLS/C1532717"}],"text":"kDa"}