2Mashiach S, Admon D, Oelsner G, et al. Cervical Shirodkar cerdage may be the treatment modality of choice for cervical pregnancy [J] .Hum Reprod,2002,17(2) :493 - 496.
3Sonmez AS, Kafkasli A, Balat O, et al.Cervical pregnancy: can age and parity be predisposing factors [J]. Acta Obstet Gynecol Scand, 1994, 73 (9) :734 - 736.
4Leeman LM, Wendland CL. Cervical ectopic pregnancy. Diagnosis with endovaginal ultrasound examination and successful treatment with methotrexate [J].Arch Faro Med,2000,9(1):72- 77.
5Kirk E, Condous G, Haider Z, et al. The conservative management of cervical ectopic pregnancies [ J]. Ultrasound Obstet Gynecol, 2006,27 (4) : 430 - 437.
6Ash S, Farrell SA. Hysteroscopic resection of a cervical ectopic pregnancy [J]. Fertil Steril, 1996,66(5) :842- 844.
7Vande Meerssche M.Cervical pregnancy three cases reports and review of the teratone[J ]. Hum Reprod, 1995.10:1850
