Comparison of robot-assisted partial nephrectomy with KangDuo surgical system vs. the da Vinci Si system: Quality of life and medium-term oncological outcomes - Zhihua Li; Yiwei Huang; Xiang Wang; Meng Zhang; Shubo Fan; Fan Liu; Shengwei Xiong; Kunlin Yang; Hua Guan; Xuesong Li; Liqun Zhou; Sihan Zhou; et al. (Chinese Medical Journal)