Affiliation: | a Center Laboratory, People's Hospital in Gansu Province, Lanzhou, China b Department of Urology, People's Hospital in Gansu Province, Lanzhou, China d Department of Radiology, People's Hospital in Gansu Province, Lanzhou, China e Center for Clinical Laboratory, People's Hospital in Gansu Province, Lanzhou, China c Department of Urology, First Hospital of PLA, Lanzhou, China |