Effect of vasoactive intestinal polypeptide.
D000818:Animals; D004305:Dose-Response Relationship, Drug; D004947:Esophagus / Q000502:physiology*; D005768:Gastrointestinal Hormones / Q000494:pharmacology*; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology*; D009893:Opossums; D010455:Peptides / Q000502:physiology*; D011433:Propranolol / Q000494:pharmacology; D013779:Tetrodotoxin / Q000494:pharmacology; D014660:Vasoactive Intestinal Peptide / Q000494:pharmacology*
D005768:Gastrointestinal Hormones; D010455:Peptides; D014660:Vasoactive Intestinal Peptide; D013779:Tetrodotoxin; D011433:Propranolol