Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Philippine College of Surgeons.
Chicago-Zitierstil (17. Ausg.)Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Manila: Philippine College of Surgeons.
MLA-Zitierstil (8. Ausg.)Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Philippine College of Surgeons.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.