TY - GEN AU - Yang,Jun AU - Liu,Ji-Hong AU - Zou,Xiao-Feng AU - Yuan,Yuan-Hu AU - Xiao,Ri-Hai AU - Wu,Geng-Qing AU - Wang,Xiao-Ning AU - Wu,Yu-Ting AU - Long,Da-Zhi AU - Liu,Fo-Lin AU - Liu,Min AU - Xu,Hui TI - [Sperm retrieval and the predictive parameter of non-obstructive azoospermia: a meta-analysis of literatures 1990 to 2008] SN - 0376-2491 PY - 2009///0409 KW - Azoospermia KW - pathology KW - Humans KW - Male KW - Sperm Retrieval KW - Testis N1 - Publication Type: English Abstract; Journal Article; Meta-Analysis ER -