[Pentazocine in obstetrical anesthesia. Preliminary report].
D000773:Anesthesia, Obstetrical; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000187:drug effects; D010423:Pentazocine / Q000494:pharmacology*; D011247:Pregnancy
D010423:Pentazocine
Pentazocina en analgesia obstétrica. Communicación preliminar.