title: Pulmonary-aortic pressure gradients as index of caliber of fetal patent ductus arteriosus.
mesh_terms: D000818:Animals; D001011:Aorta; D001795:Blood Pressure Determination / Q000379:methods*; D004373:Ductus Arteriosus / Q000187:drug effects*; D005260:Female; D005318:Fetal Heart / Q000187:drug effects; D007213:Indomethacin; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D011652:Pulmonary Circulation / Q000187:drug effects; D012756:Sheep
chemical_list: D007213:Indomethacin