1[1]shalev E,Yarom M,Peleg D,et al.Transvaginal sonography as the ult imate diagnosic tool for the management of ectopic pregnancy:experience with 840 cases[J]. Fertil Steril , 1998,69(1)∶62.
2[2]Yao M,Tulandi T.Current status of surgical and nonsurgical management of ectopic pregnancy[J].Fertil steril , 1997,67(3)∶421.
