Não informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Philippine Journal of Surgery and Surgical Specialties. Manila: Philippine College of Surgeons.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Philippine Journal of Surgery and Surgical Specialties. Philippine College of Surgeons.
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