March hemoglobinuria associated with asymptomatic congenital heart disease.
D000293:Adolescent; D006328:Cardiac Catheterization; D006330:Heart Defects, Congenital / Q000150:complications*; D006345:Heart Septal Defects, Ventricular / Q000150:complications; D006452:Hemoglobinometry; D006456:Hemoglobinuria / Q000097:blood / Q000209:etiology* / Q000652:urine; D006801:Humans; D008297:Male; D010701:Phonocardiography; D005082:Physical Exertion; D013177:Sports