WAN Xinrong,SHI Yansheng,BAO Xiang,GUAN Qige,YU Chen,WANG Guanghe,LIU Wei,ZHANG Zhibin,ZHONG Wenqin,JIAO Yusheng,HASI Qimuge. Effect of the contraceptive compound (EP-1)on reproduction of the Djungarian hamster (Phodopus campbelli) in the typical steppe[J]. .