Não informado. (2008). The Year book of surgery. Year Book Medical Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Year Book of Surgery. Chicago, Ill: Year Book Medical Publishers, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Year Book of Surgery. Year Book Medical Publishers, 2008.
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