title: In vitro pharmacologic and histopathologic studies on the human cardiac sphincteric muscle from achalasic and control patients.
mesh_terms: D046508:Culture Techniques; D003679:Deglutition; D004931:Esophageal Achalasia / Q000473:pathology* / Q000503:physiopathology*; D004943:Esophagogastric Junction / Q000187:drug effects / Q000294:innervation / Q000473:pathology / Q000503:physiopathology; D005724:Ganglia; D006801:Humans; D009130:Muscle, Smooth / Q000187:drug effects / Q000473:pathology; D009413:Nerve Fibers, Myelinated; D009538:Nicotine / Q000494:pharmacology; D010879:Piperazines / Q000494:pharmacology; D011941:Receptors, Adrenergic; D011955:Receptors, Drug; D013566:Sympathomimetics / Q000494:pharmacology
chemical_list: D010879:Piperazines; D011941:Receptors, Adrenergic; D011955:Receptors, Drug; D013566:Sympathomimetics; D009538:Nicotine