2Graczykowsk JW, Mishell DR Jr. Methotrexate prophylaxis for persistent ectopic pregnancy after conservative treatment by salpingostomy[J].Obstet Gynecol, 1997,89(1): 118 - 122.
3Dimarchi JM, Hale RW, Kosasa TS, et al. Persistent ectopic pregnancy[J]. Obstet Gynecol,1987,70(4) :555 - 558.
4Vermesh M, Silva PD, Sauer MV, et al. Presisitent tubal ectopic gastation: patterns of circulating beta- human chorionic gonadotropin and progesterone, and management options[J]. Fertil Steril, 1988,50(4): 584 - 588.
5Pouly JL, Mahnes H, Mage G, et al. Convervative laparoscopic treatment of 321 Ectopic pregnancy[J]. Fertil steril, 1986,46 (6): 1093-1097.
6Cartwright. PS, Herbert CM 3rd, Maxson WS. Operative laparoacopy for themanagement of Tubal Pregnancy[J]. J Reprod Med, 1986,3 (1): 589-591.
7Bruhat MA, Manhes H, Mage G, et al. Treatment of Ectopic Pregnancy by means of Laparoscopy[J ]. Fertil steril, 1980,33(4) :411 - 414.
8Stovall TG, Ling FW. Gray LA. et al. Methotrexate treatment of unruptured ectopic pregnancy :A report of 100 cases[J]. Obstet Gynecol,1991,77(5) :749 - 753.
9Spandorfer SD, Sawin SW, Benjamin I, et al. Postoperative day 1 serum human chorionic gonadotropin level as a predictor of persistent ectopic pregnancy after conservative surgical management[J ]. Fertil Steril,1997,68(3):430-434.