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Kim, Yi-Jun, Changhoon Song, Keun-Yong Eom, In Ah Kim, and Jae-Sung Kim. "Lymph Node Ratio Determines the Benefit of Adjuvant Radiotherapy in Pathologically 3 or Less Lymph Node-positive Prostate Cancer After Radical Prostatectomy: A Population-based Analysis With Propensity-score Matching." Oncotarget 2017.

Kim, Yi-Jun, et al. "Lymph Node Ratio Determines the Benefit of Adjuvant Radiotherapy in Pathologically 3 or Less Lymph Node-positive Prostate Cancer After Radical Prostatectomy: A Population-based Analysis With Propensity-score Matching." Oncotarget 2017.