Protracted labours with occiput anterior presentation at the Bergen Maternity Hospital in the period 1930-1941 and at the Oslo Municipal Maternity Hospital in the period 1938-1948; a comparative investigation of conservative and active treatment of labour.
D005260:Female; D006771:Hospitals, Maternity; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy
LABOR