title: [ON THE SYSTEMATIC USE OF VACUUM EXTRACTION. RESULTS AND COMMENTS].
mesh_terms: D005113:Extraction, Obstetrical; D005260:Female; D006801:Humans; D009774:Obstetrics; D011247:Pregnancy; D014618:Vacuum; D014620:Vacuum Extraction, Obstetrical
keywords: EXTRACTION, OBSTETRICAL; PREGNANCY
vernacular_title: "SOBRE EL EMPLEO SISTEM'ATICO DE LA VENTOSA OBST'ETRICA. RESULTADOS Y COMENTARIOS".