Echocardiography.
D000328:Adult; D002648:Child; D004452:Echocardiography / Q000379:methods; D006321:Heart / Q000033:anatomy & histology; D006330:Heart Defects, Congenital / Q000175:diagnosis; D006331:Heart Diseases / Q000175:diagnosis; D006801:Humans; D011187:Posture