1. Department of Urology, The Ningbo No. 1 Hospital, Zhejiang University, Ningbo, P.R. China.
2. Ningbo Key Laboratory of Translational Medicine in Urinary Diseases, The Ningbo No. 1 Hospital, Zhejiang University, Ningbo, P.R. China.
3. Reproductive Center, Ningbo No. 1 Hospital, Zhejiang University, Ningbo, P.R. China.