title: Malfunction of mitral ball valve prosthesis due to thrombus. Report of 2 cases with notes on early clinical diagnosis.
mesh_terms: D000328:Adult; D004452:Echocardiography; D005260:Female; D005337:Fibrin; D006326:Heart Auscultation; D006333:Heart Failure / Q000209:etiology; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D010701:Phonocardiography; D013927:Thrombosis / Q000175:diagnosis* / Q000601:surgery
chemical_list: D005337:Fibrin