3Shannon C, Brothers P, Philip N, et al. Ec- topic pregnancy and medical abortion[J]. Obstet Gynecal,2004,104 ( 1 ): 161-167.
4Einarsson J], Michel S,Young AE. Delay- ed spontaneous expulsion of a cervical ec- topic pregnancy: a case report[J].J Minim Invasive Gynecal,2005,12(2):165-167.
5Mashiach S, Admon D, Oelsner G, et al. Cervical shirodkar cerelage may be the treatment madality of choice for cervical pregnancy [J].Hum Reprod, 2002,17(2): 493-496.
6Jozwiak EA, Ulug U, Akman MA, et al. Successful resection of a heterotopic cer- vical pregnancy resulting from intmcytoplas- mic sperm injection[J].Fertil Steril, 2003, 79(2):428-430.
7Suzumori N, Katanok, Sato T, etal. Con- servative treatment by angiographic artery embolization of an 11-week cervical pre- gnancy after a period of heavy bleeding [J]. Fertil Steril,2003,80(3):617-619.
8Kim T J, Seong S J, Lee K J, et al. Clinical outcomes of patients treated for cervical pregnancy with or without methotrexate[J]. J Korean Med Sci, 2004,19(6):848-852.