1. Medical Genetic Institute of Henan Province; Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou P.R. China
2. School of Medicine; Xi'an Jiaotong University; Xi'an P.R. China
3. Department of Urology; The First People's Hospital of Zhengzhou city; Zhengzhou P.R. China
4. Armed Police Guangxi Corps Hospital; Nanning P.R. China