title: [Clinical studies on obstetric analgesia by intrathecal beta-endorphin].
mesh_terms: D000328:Adult; D000773:Anesthesia, Obstetrical / Q000379:methods*; D000775:Anesthesia, Spinal / Q000379:methods*; D004723:Endorphins / Q000378:metabolism; D005260:Female; D006801:Humans; D011247:Pregnancy; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001615:beta-Endorphin