1. Department of Urology, Tongren Hospital of Wuhan University, Wuhan Third Hospital, Wuhan, Hubei 430060, China.
2. Department of Medical Ultrasonics, Hubei Maternal and Child Health Hospital, Wuhan, Hubei 430060, China.
3. Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China.