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Ku, Ja Hyeon, Myong Kim, Seok-Soo Byun, Hyeon Jeong, Cheol Kwak, Hyeon Hoe Kim, and Sang Eun Lee. "External Validation of Models for Prediction of Lymph Node Metastasis in Urothelial Carcinoma of the Bladder." PLoS One 2015.

Ku, Ja Hyeon, et al. "External Validation of Models for Prediction of Lymph Node Metastasis in Urothelial Carcinoma of the Bladder." PLoS One 2015.