DOUBLE-BLIND EVALUATION OF ETHCHLORVYNOL DURING LABOR.
D004311:Double-Blind Method; D004984:Ethchlorvynol; D005260:Female; D006801:Humans; D006993:Hypnotics and Sedatives; D007743:Labor, Obstetric; D010919:Placebos; D011247:Pregnancy; D014937:Work
D006993:Hypnotics and Sedatives; D010919:Placebos; D004984:Ethchlorvynol
ETHCHLORVYNOL; HYPNOTICS AND SEDATIVES; LABOR; PLACEBOS; PREGNANCY