title: Bayer withdraws heart surgery drug.
authors.forename: Annette
authors.initials: A
authors.lastname: Tuffs
mesh_terms: D007611:Aprotinin; D017277:Drug Approval; D006331:Heart Diseases / Q000188:drug therapy*; D006490:Hemostatics; D006801:Humans
chemical_list: D006490:Hemostatics; D007611:Aprotinin