1Piotr L, Stephen R, Robinsin J, et al. Transcervical embryo transfer as a risk for ectopic pregnancy [J].Fertil Steril, 1999,72 (2) : 305-308.
2Johnson N, Mccomb P, Gunex G. Heterotopic pregnancy complicating in vitro fertilization[J]. Aust N Z J Obstet Gynaecol, 1998,38(2): 131-135.
3Annika S, Jane T, Hamberger L, et al. Risk factors for ectopic pregnancy in assisted reproduction[J]. Fertil Steril, 1999,71 (2): 282-286.
4Agrawal SK, Wisot AL, Garzo G, et al. Cornal pregnancies in patients with prior salpingectomy undergoing in vitro fertilization and embryo transfer[J]. Fertil Steril, 1996,66 (4): 652-659.
5Paltieli Y, Eibschitz I, Ziskind G, et al. High progesterone levels and ciliary dysfunction, a possible cause of ectopic pregnancy[J]. J Assist Reprod Genet, 2000,17(2) :103-106.
6Warnes GM, Petrucco OM, Seanark RF, et al. Is the male involved in the actiology of ectopic pregnancy[J]?Hum Reprod,1998, 13(12) :3505-3510.
7Wennerholm UB. Obsteric and prenatal outcome of pregnancies following intracyto plasmic sperm injection[J]. Hum Reprod,1998,13(11):1113-1119.
8Ben WJ, Willen M, Veen F, et al. Diagnosis of ectopic pregnancy after in vitro fertilization and embryo transfer[J] . Fertil Steril, 1997,68(6) : 1027-1032 .
9Sugantha SE, Webster S, Sundar E, et al. Productive value of plasma human chorionic gonadotrophin following assisted conception treatment [J]. Hum Reprod,2000,15(2) :469-473.
10Ben W J, Petra JH, Simone L, et al. Can noninvasive diagnostic tools predict tubal rupture or active bleeding in patients with tubal pregnancy [J]. Fertil Steril,1999,71(1):167-173.