1 Department of Urology of the First Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning, 116044, People's Republic of China.
2 Department of Orthopedics, Second Affiliated Hospital, Dalian Medical University, Dalian, 116044, China.
3 College of Stomatology, Dalian Medical University, Dalian, 116044, China.
4 Department of Urology of the First Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning, 116044, People's Republic of China. hanchuanchun@163.com.
5 Department of Urology of the First Affiliated Hospital & Institute of Cancer Stem Cell, Dalian Medical University, Dalian, Liaoning, 116044, People's Republic of China. song_xishuang@sina.com.