title: The case for the early closure of a patent ductus arteriosus.
mesh_terms: D000367:Age Factors; D001835:Body Weight; D006332:Cardiomegaly / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000175:diagnosis / Q000401:mortality / Q000601:surgery*; D004562:Electrocardiography; D005500:Follow-Up Studies; D006130:Growth Disorders / Q000150:complications; D006333:Heart Failure / Q000150:complications; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D007223:Infant; D012140:Respiratory Tract Diseases / Q000150:complications