title: Bloody pericardial effusion: clinically significant without intrinsic diagnostic specificity.
authors.forename: D H
authors.initials: DH
authors.lastname: Spodick
authors.lastname: Worcester
mesh_terms: D002305:Cardiac Tamponade / Q000150:complications*; D006801:Humans; D010490:Pericardial Effusion / Q000209:etiology*