2Barnhart KT, Sammel MD, Gracia CR. et al. Risk factors for ectopic pregnancy in women with symptomatic first trimester pregnancies [J].Fertil Steri,2006,86(1) :36- 43.
3Fabunmi L, Perks N. Caesarean section scar ectopic pregnancy following postcoital contraception[J]. J Fam Plann Reprod Health Care, 2002,28:155 -156.
4Trussell J, Ellertson C, yon Hertzen H. Estimating the effectiveness of emergency contraceptive pills[J]. Contraception,2003,67 : 259-65.
二级参考文献5
1刘彦.实用妇科腹腔镜手术学[M].北京:科技文献出版社,2002.76-89.
2Dzwood MY.Lapanoscopic surgery of the fallopian tubes and ovaries.Semin laparosc Surg,1999,6(2):58.
