title: A quantitative evaluation of psycho-prophylaxis in childbirth.
mesh_terms: D000328:Adult; D000758:Anesthesia; D001034:Apgar Score; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007751:Labor, Induced; D007743:Labor, Obstetric; D008297:Male; D008614:Meperidine; D009321:Natural Childbirth; D009609:Nitrous Oxide; D007744:Obstetric Labor Complications; D010551:Personality; D011247:Pregnancy; D011295:Prenatal Care; D012959:Socioeconomic Factors; D013404:Suggestion; D013997:Time Factors
chemical_list: D008614:Meperidine; D009609:Nitrous Oxide