title: Analgesia produced by a spinal action of morphine and effects upon parturition in the rat.
mesh_terms: D000773:Anesthesia, Obstetrical / Q000379:methods*; D000818:Animals; D001341:Autonomic Nervous System / Q000187:drug effects; D005260:Female; D007278:Injections, Spinal; D007743:Labor, Obstetric / Q000187:drug effects*; D008954:Models, Biological; D009020:Morphine / Q000008:administration & dosage* / Q000097:blood / Q000494:pharmacology; D011247:Pregnancy; D011817:Rabbits; D051381:Rats
chemical_list: D009020:Morphine