1. Physiology of the cervix;Danforth;Amer J Obstet Gynaec,1947
2. Alterations in collagen organization during cervical dilatation;Bryant;Surg Gynaec & Obstet,1968
3. Pelvic scoring for elective induction;Bishop;Obstet & Gynaec,1964
4. The unripe cervix;Calder;Blair Bell Memorial Lecture,1977
5. Extra-amniotic Prostaglandin E2 and the unfavourable cervix;Shepherd;Lancet,1976