title: Cerebral mechanisms in pain perception.
mesh_terms: D001921:Brain / Q000503:physiopathology*; D004745:Enkephalins / Q000502:physiology; D006801:Humans; D009475:Neurons, Afferent / Q000502:physiology; D009619:Nociceptors / Q000503:physiopathology*; D010146:Pain / Q000503:physiopathology*; D010465:Perception / Q000502:physiology*; D013116:Spinal Cord / Q000503:physiopathology; D013373:Substance P / Q000502:physiology
chemical_list: D004745:Enkephalins; D013373:Substance P