title: Letter: Medical manipulation of the ductus arteriosus.
mesh_terms: D006328:Cardiac Catheterization; D004373:Ductus Arteriosus / Q000187:drug effects*; D006330:Heart Defects, Congenital / Q000188:drug therapy / Q000628:therapy*; D006801:Humans; D007231:Infant, Newborn; D011458:Prostaglandins E / Q000494:pharmacology / Q000627:therapeutic use; D011651:Pulmonary Artery / Q000002:abnormalities*
chemical_list: D011458:Prostaglandins E