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Assessment of the Nodal Status in Ampullary Carcinoma: The Number of Positive Lymph Nodes Versus the Lymph Node Ratio
Sakata, Jun; Shirai, Yoshio; Wakai, Toshifumi; Ajioka, Yoichi; Akazawa, Kouhei; Hatakeyama, Katsuyoshi World Journal of Surgery. 2011.
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