title: The synaptic connections between substance P-positive nerve terminals and principal neurons in the superior cervical ganglion of the rat.
mesh_terms: D000818:Animals; D005727:Ganglia, Spinal / Q000032:analysis; D005728:Ganglia, Sympathetic / Q000032:analysis* / Q000648:ultrastructure; D006651:Histocytochemistry; D007124:Immunoenzyme Techniques; D008297:Male; D009474:Neurons / Q000032:analysis; D051381:Rats; D013373:Substance P / Q000032:analysis*; D013569:Synapses / Q000032:analysis* / Q000648:ultrastructure
chemical_list: D013373:Substance P