2Ustunyurt E, Duran M, Coskun E, et al. Role of initial and day 4 human chorionic gonadotropin levels in predicting the outcome of single- dose methotrexate treatment in women with tubal eetopie pregnancy [J] . Arch Gynecol Obstet, 2013, 5 (12) : 1376-1379.
3Brodowska A, Szydlowska I, Starczewski A, et al. Analysis of risk fact ors for ectopic pregnancy in own material in the years [ J ] . Pol Merkuri- usz Lek, 2012, 18 (103) : 74-78.
4Weigert M, Gruber D, Pernicka E, et al. Previous tubal ectopic pregnan- cy raises the incidence of repeated ectopic pregnancies in in vitro fertili- zation-embryo transfer patients [ J] . J Assist Reprod Genet, 2011, 26 (1): 13-17.
5Wang J, Wei Y, Diao F, et al. The association between polycystic ovary syndrome and ectopic pregnancy after in vitro fertilization and embryo transfer [J] . Am J Obstet Gynecol, 2013, 4 (6) : 134-138.
6Dillon KE, Sioulas VD, Sammel MD, et al. How and when human cho- rionic gonadotropin curves in women with an ectopic pregnancy mimic other outcomes: differences by race and ethnicity [ J ] . Fertil Steril, 2012, 98 (4):911-916.
7Keskin U, Duru NK, Ercan CM, et al. Changes in the ovarian stoma blood flow in patients treated with laparoscopic salpingostomy for ectopic pregnancy [J] . J Obstet Gynaecol, 2013, 33 (4) : 399-402.
8Lennox G, Pantazi S, Keunen J, et al. Minimally invasive surgical man- agement of a second trimester pregnancy in a rudimentary uterine horn [J] . J Obstet Gynaecol Can, 2013, 35 (5) : 468-472.
9Botros R, Candice PH, Mostafa A. Challenges in the diagnosis and management of interstitial and cornual ectopic pregnancies [J] . Mid- dle East Fertil Soc J, 2013, 18 (4) : 235-240.
10Crochet JR, Bastian LA, Chireau MV. Does this woman have an ectopic pregnancy: the rational clinical examination systematic review [J] . JAMA, 2013, 309 (16) : 1722-1729.