1 Institute of Urology, Lanzhou University Second Hospital, Key Laboratory of Urological Diseases in Gansu Province, Gansu Nephro-Urological Clinical Center, Lanzhou, Gansu 730030, PR China; Department of Critical Care Medicine, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, PR China.
2 Gansu Provincial Academy of Medical Sciences, Gansu Provincial Cancer Hospital, Lanzhou, Gansu 730050, PR China.
3 Department of Critical Care Medicine, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, PR China.
4 Institute of Urology, Lanzhou University Second Hospital, Key Laboratory of Urological Diseases in Gansu Province, Gansu Nephro-Urological Clinical Center, Lanzhou, Gansu 730030, PR China. Electronic address: [email protected].