title: Patency of the ductus arteriosus at 90.
mesh_terms: D000367:Age Factors; D000368:Aged; D006332:Cardiomegaly / Q000209:etiology / Q000473:pathology; D004374:Ductus Arteriosus, Patent / Q000150:complications / Q000401:mortality / Q000473:pathology; D006801:Humans; D008297:Male; D009206:Myocardium / Q000473:pathology; D011651:Pulmonary Artery / Q000473:pathology