Ambulatory echocardiography.
D000293:Adolescent; D009202:Cardiomyopathies / Q000175:diagnosis; D002648:Child; D002675:Child, Preschool; D004452:Echocardiography / Q000379:methods*; D004562:Electrocardiography; D006327:Heart Block / Q000151:congenital / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008945:Mitral Valve Prolapse / Q000175:diagnosis; D013686:Telemetry; D013771:Tetralogy of Fallot / Q000175:diagnosis