title: Constriction of the fetal ductus arteriosus induced by oxygen, acteylcholine, and norepinephrine in normal dogs and those genetically predisposed to persistent patency.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology*; D000818:Animals; D001835:Body Weight; D003250:Constriction; D004285:Dogs; D004373:Ductus Arteriosus / Q000187:drug effects*; D004374:Ductus Arteriosus, Patent / Q000235:genetics*; D000860:Hypoxia; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth; D009638:Norepinephrine / Q000494:pharmacology*; D010100:Oxygen / Q000494:pharmacology*; D010477:Perfusion
chemical_list: D000109:Acetylcholine; D010100:Oxygen; D009638:Norepinephrine