Não informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
Čikaški stil citiranja (17. izdanje)Não informado. Philippine Journal of Surgery and Surgical Specialties. Manila: Philippine College of Surgeons.
MLA način citiranja (8. izdanje)Não informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
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