title: [Anatomic and neurophysiologic studies on nucleus raphe magnus].
mesh_terms: D000818:Animals; D009020:Morphine / Q000494:pharmacology; D009434:Neural Pathways / Q000033:anatomy & histology; D010146:Pain / Q000503:physiopathology*; D011903:Raphe Nuclei / Q000033:anatomy & histology / Q000502:physiology*; D012701:Serotonin / Q000494:pharmacology
chemical_list: D012701:Serotonin; D009020:Morphine