Department of Urology, Chinese People's Liberation Army General Hospital, Beijing 100853, China;
Department of Urology, Taiyuan City Center Hospital, Taiyuan,Shanxi 030009, China;
Department of Urology, Chinese People's Liberation Army General Hospital, Beijing 100853, China;
Department of Urology, Chinese People's Liberation Army General Hospital, Beijing 100853, China;
Department of Urology, Chinese People's Liberation Army General Hospital, Beijing 100853, China;
Department of Urology, Chinese People's Liberation Army General Hospital, Beijing 100853, China;