Não informado. Western journal of surgery, obstetrics and gynecology. Seattle Surgical Society.
Chicago-Zitierstil (17. Ausg.)Não informado. Western Journal of Surgery, Obstetrics and Gynecology. Portland, Ore: Seattle Surgical Society.
MLA-Zitierstil (8. Ausg.)Não informado. Western Journal of Surgery, Obstetrics and Gynecology. Seattle Surgical Society.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.