2Tal J, Haddad S,Gorodon N,et al.Heterotopic pregnancy after ovulation and assisted re pr oduction technologies:a literature review from 1971～1993[J].Fertil Steril,199 6,66:1
3Dubuisson JB,Foulot H,Aubriot FX,et al.Risk factors for ectopic pregnancy in 556 pregnancies after in vitro fertilization:Implicati on for preventive management[J].Fertil Steril,1991,56(4):686-690
4Strandell A,Thorburn J,Hamberger L,et al.Risk factors for ectopic pregn ancy in assisted reproduction[J].Fertil Steril,1999,71(2):282-6
5Senturk LM,Arici A.Leukemia inhibitory factor in human reproduct ion[J].Am J Reprod Immunol,1998,39(2):144-51
6Tummon IS, Whitmore NA,Daniel Sa,et al.Transfering more embryos increase risk of heterotop ic pregnancy[J].Fertil Steril,1994,61(6):1065
7Lass A,Elleb ogen A.Effect of salpingectomy on ovary response to superovulation in an in vitr o fertilization embryo transfer program[J].Fertil Steril,1998,70(5):1035
8Barmat LI,Rauch E,Spandorfer S,et al.The effect of hydrosalpin ges on IVF-ET outcome[J].Assist Reprod Genet,1999,16(7):350-4
9Pisarska MD,Carson SA. Clin Obstet Gynecol, 1999,42(1) :2-8
10Caserta D, Agneni M, Marci R, et al. Minerva Ginecol, 2001,53(3): 199-202
1Goldman GA, Fiach B, Ovadia J, et al. HeterotopiC pregnancy after aseisted reproductive technologies. Obstet Gynecok Surv, 1992,47 :217-221.
2Dubuisson JB,Foulot H,Aubriot FX,et al.Risk factors for ectopic pregnancy in 556 pergnancies after in vitro fertillzation:Implication for preventive management[J].Fertil Steril,1999,71(2):282～286.
3Agrawal SK,Wisot AL,Garzo G,et al.Cornal pregnancies in patientd with prior salpingectomy undergoing in vitro fertilzation and embryo transfer[J].Fertil St.eril,1996,66 (4):652 ～659.
4Jpb-Spira N,Coste J,et al,Chromosomal abnormalities and ectopic pregnancy? New directions for aetiological research[J].Human Reprod,1996,11:239～242.
