title: Unexplained bleeding in a patient with mechanical valve prostheses.
authors.affiliation: Medical College of Wisconsin, Milwaukee.
authors.forename: R E
authors.initials: RE
authors.lastname: Smith
authors.forename: J
authors.initials: J
authors.lastname: Santamaria
mesh_terms: D000328:Adult; D001021:Aortic Valve; D005260:Female; D006350:Heart Valve Prosthesis; D006406:Hematoma / Q000175:diagnosis; D006801:Humans; D008943:Mitral Valve; D010388:Pelvis; D014842:von Willebrand Diseases / Q000175:diagnosis*