title: Echocardiographic abnormalities of interventricular septum associated with "absent Q" syndrome.
mesh_terms: D002037:Bundle-Branch Block / Q000175:diagnosis; D004452:Echocardiography; D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis*; D006346:Heart Septum; D006801:Humans; D011187:Posture; D013997:Time Factors; D014159:Transducers