Kim, B. W., Ha, Y.-S., Lee, J. N., Kim, H. T., Kim, T.-H., Lee, J. K., Byun, S.-S., Choi, Y. D., Kang, H. W., Yun, S.-J., Kim, W.-J., Kwon, Y. S. and Kwon, T. G. (2015) “Effects of Previous or Synchronous Non-Muscle Invasive Bladder Cancer on Clinical Results after Radical Nephroureterectomy for Upper Tract Urothelial Carcinoma: A Multi-Institutional Study”, Urology Journal, 12(4), pp. 2233–2239. doi: 10.22037/uj.v12i4.2831.