1. Survey of forceps delivery in North America in 1990;Ramin;Obstet Gynecol,1993
2. A continuing use for Kiellands forceps?;Traub;Br J Obstet Gynaecol,1984
3. Midforceps delivery: No?;Friedman;Clin Obstet Gynaecol,1987
4. Operative forceps delivery: forceps and vacuum extractor;Bowes;Curr Probl Obstet Gynecol Fertil,1994
5. Neonatal and maternal outcome in low-pelvic and mid-pelvic operative deliveries;Robertson;Am J Obstet Gynecol,1990