Não informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
Citação do estilo Chicago (17ª ed.)Não informado. Philippine Journal of Surgery and Surgical Specialties. Manila: Philippine College of Surgeons.
Citação MLA (8ª ed.)Não informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
Atenció: Aquestes cites poden no estar 100% correctes.