title: [A basic in vitro study on pepsinogen secretion in the bullfrog].
mesh_terms: D000818:Animals; D001626:Bethanechol Compounds / Q000494:pharmacology; D004947:Esophagus / Q000378:metabolism*; D066298:In Vitro Techniques; D009092:Mucous Membrane / Q000378:metabolism; D010435:Pepsinogens / Q000378:metabolism*; D011892:Rana catesbeiana; D013268:Stimulation, Chemical
chemical_list: D001626:Bethanechol Compounds; D010435:Pepsinogens