Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Philippine College of Surgeons.
Citação do estilo Chicago (17ª ed.)Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Manila: Philippine College of Surgeons.
Citação MLA (8ª ed.)Não informado. Philippine Journal of Surgery, Obstetrics and Gynecology. Philippine College of Surgeons.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.