title: The inhibitory effects of steroidal sex hormones on the responses of the guinea-pig isolated ileum to nicotine and serotonin.
mesh_terms: D000818:Animals; D012739:Gonadal Steroid Hormones / Q000494:pharmacology*; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*; D009538:Nicotine / Q000037:antagonists & inhibitors*; D012702:Serotonin Antagonists; D013256:Steroids / Q000494:pharmacology*
chemical_list: D012739:Gonadal Steroid Hormones; D012702:Serotonin Antagonists; D013256:Steroids; D009538:Nicotine