TY - GEN AU - Torres Madrazo,M AU - Ramirez Soto,E AU - Gonzalez Ramirez,R AU - Lara Samano,E TI - [Potentiated obstetric analgesia. Study of 500 cases] SN - 0300-9041 PY - 1969///1201 KW - Adolescent KW - Adult KW - Analgesia KW - Anesthesia, Obstetrical KW - Drug Synergism KW - Female KW - Humans KW - Natural Childbirth KW - Oxytocics KW - pharmacology KW - Pregnancy N1 - Publication Type: Journal Article ER -