title: An unusual murmur in an adolescent.
authors.forename: R D
authors.initials: RD
authors.lastname: Greenwood
mesh_terms: D000293:Adolescent; D004314:Down Syndrome / Q000150:complications*; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis*; D004562:Electrocardiography; D006326:Heart Auscultation; D006337:Heart Murmurs; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis; D008297:Male