title: Human spinal neurons: innervation by both substance P and enkephalin.
mesh_terms: D004723:Endorphins / Q000032:analysis*; D004744:Enkephalin, Methionine; D004745:Enkephalins / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008297:Male; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D013116:Spinal Cord / Q000166:cytology / Q000187:drug effects / Q000502:physiology*; D013373:Substance P / Q000032:analysis*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D013373:Substance P; D004744:Enkephalin, Methionine