New model of PIRADS and adjusted prostatespecific antigen density of peripheral zone improves the detection rate of initial prostate biopsy: a diagnostic study oleh Chen Huang, Zong-Qiang Cai, Feng Qiu, Jin-Xian Pu, Qi-Lin Xi, Xue-Dong Wei, Xi-Ming Wang, Xiao-Jun Zhao, Lin-Chuan Guo, Jian-Quan Hou, Yu-Hua Huang