1. Department of Urology Surgery, Jiaozhou Central Hospital, Qingdao 266300, Shandong Province, China
2. Hemodialysis Room, The No. 4 People’s Hospital of Jinan, Jinan 250031, Shandong Province, China
3. Department of Urology Surgery, Affiliated Qingdao Central Hospital, Qingdao University, Qingdao 266000, Shandong Province, China
4. Department of Clinical Laboratory, Zhangqiu District People’s Hospital, Jinan 250200, Shandong Province, China
5. Department of Nephrology, Zhangqiu District People’s Hospital, Jinan 250200, Shandong Province, China
6. Department of Nephrology Geriatrics, The Third People’s Hospital of Qingdao, Qingdao 266041, Shandong Province, China