Assessment of Related Factors Regarding Premature Delivery of Pregnant Ewes after Intrauterine Fetal Cardiac Intervention
YANG Sen，HUA Yi-min，ZHOU Kai-yu，ZHENG Zhi，GUO Nan，ZHU Qi，WANG Yi-bin，SHI Xiao-qing，HUANG Nan
Laboratory Animal and Comparative Medicine . 2010, (2): 77 -81 .