TY - Front. Med. A1 - DING Xiaofang, LI Honggang, XIONG Chengliang T1 - Chemotactic effect of urokinase-type plasminogen activator on mouse spermatozoa Y1 - 2008-06-05 JF - Frontiers of Medicine JO - Front. Med. SP - 195 EP - 199 VL - 2 IS - 2 UR - https://academic.hep.com.cn/fmd N1 - 10.1007/s11684-008-0037-7 ER -