title: Structural evidence in support of an urinary tract pacemaker.
mesh_terms: D000818:Animals; D001369:Axons; D006651:Histocytochemistry; D006801:Humans; D007682:Kidney Pelvis / Q000033:anatomy & histology* / Q000166:cytology / Q000294:innervation; D007684:Kidney Tubules / Q000033:anatomy & histology; D008854:Microscopy, Electron; D008856:Microscopy, Fluorescence; D009130:Muscle, Smooth / Q000033:anatomy & histology / Q000166:cytology / Q000294:innervation; D009474:Neurons; D009638:Norepinephrine / Q000032:analysis; D013552:Swine; D014513:Ureter / Q000033:anatomy & histology* / Q000166:cytology
chemical_list: D009638:Norepinephrine