8Graham O, Cheng LC, Parsons JH. The ultrasound diagnosis of retained fetal bones in West African patients complaining of infertility [J] . BJOG, 2000, 107 (1): 122.
9Cohen SB, Kalter - Ferber A, Weisz BS, et al. Hysteroscopy may be the method of choice for ma agement of residual trophoblastic tissue [J] . J Am Assoc Gynecol Laparosc, 2001 , 8 (2) : 199.
10Goldenberg M, Sehiff E, Aehiron R, et al. Managing residual trepho- blastic tissue [J] . Hysteroscopy for directing curettage. J Reprod Med, 1997, 42 (1): 26.
7Grimbizis GF, Tsolakidis D, Mikos T. A prospective compari- son of transvaginal ultrasound, saline infusion sonohysterogra- phy, and diagnostic hysteroscopy in the evaluation of endome- trial pathology[ J ]. Fertil Steril, 2010, 94 (7) : 2720 - 2725.
8Muzii L, Angioli R, Tambone V, et al. Salpingoscopy during laparoscopy using a Small-Caliber hysteroscope introduced through an accessory trocar[ J ]. J Laparoendosc Adv Surg Tech A, 2010, 20(7) : 619 -621.
9Chen X, Chcn M, Xu B, et al. Parental phenols exposure and sponta- neous abortion in Chinese population residing in the middle and tow- er reaches of the Yangtze River [ J ]. Chemosphere ,2013,93 (2) :217 - 222.
