title: Interaction of three factors in the closure of the ductus arteriosus.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000818:Animals; D001337:Autonomic Agents / Q000494:pharmacology; D001341:Autonomic Nervous System / Q000502:physiology*; D002122:Calcium Chloride / Q000494:pharmacology; D004373:Ductus Arteriosus / Q000187:drug effects / Q000294:innervation / Q000502:physiology*; D004558:Electric Stimulation; D006168:Guinea Pigs; D009119:Muscle Contraction; D009638:Norepinephrine / Q000494:pharmacology; D010100:Oxygen / Q000494:pharmacology*; D013314:Stress, Mechanical; D013779:Tetrodotoxin / Q000494:pharmacology; D014439:Tyramine / Q000494:pharmacology
chemical_list: D001337:Autonomic Agents; D013779:Tetrodotoxin; D002122:Calcium Chloride; D000109:Acetylcholine; D010100:Oxygen; D009638:Norepinephrine; D014439:Tyramine