1. Minimally Invasive Urology Center, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
2. Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Sha Tin, New Territories, Hong Kong SAR, China
3. Department of Biochemistry, School of Basic Medical Sciences, Taishan Medical University, Taian, China
4. Department of Surgery, Qilu Hospital, Shandong University, Jinan, China
5. Central Laboratory, The Second Hospital of Shandong University, Jinan, China