Hypertrophic cardiomyopathy in two elderly siblings.
D000368:Aged; D002312:Cardiomyopathy, Hypertrophic / Q000175:diagnosis / Q000235:genetics*; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006801:Humans; D010701:Phonocardiography