Percent free prostate-specific antigen is effective to predict prostate biopsy outcome in Chinese men with prostate-specific antigen between 10.1 and 20.0 ng ml−1 oleh Rui Chen, Li-Qun Zhou, Xiao-Bing Cai, Li-Ping Xie, Yi-Ran Huang, Da-Lin He, Xu Gao, Chuan-Liang Xu, Qiang Ding, Qiang Wei, Chang-Jun Yin, Shan-Cheng Ren, Fu-Bo Wang, Ye Tian, Zhong-Quan Sun, Qiang Fu, Lu-Lin Ma, Jun-Hua Zheng, Zhang-Qun Ye, Ding-Wei Ye, Dan-Feng Xu, Jian-Quan Hou, Ke-Xin Xu, Jian-Lin Yuan, Xin Gao, Chun-Xiao Liu, Tie-Jun Pan, Ying-Hao Sun, on behalf of Chinese Prostate Cancer Consortium