title: A clinical study of 100 cases of unengaged head at the onset of labour.
authors.forename: H W C T
authors.initials: HW
authors.lastname: HANSEN
mesh_terms: D005260:Female; D006257:Head; D006801:Humans; D007743:Labor, Obstetric; D010388:Pelvis; D011247:Pregnancy; D014937:Work