4Wang JX,Norman RJ,Wilcox AJ,et al.Incidence of spontaneous abortion among pregnancies produced by assisted reproductive technology[J].Human Reproduction,2004,19(2):272-277.
5Lim CE,Ho KK,Cheng NC,et al.Combined oestrogen and progesterone for preventing miscarriage[J].Cochrane Datebase Syst Rev,2013,25(9):1278-1279.
6Tummers P,de Sutter P,Dhont M.Risk of spontaneous abortion in singleton and twin pregnancies after IVF/ICSI[J].Hum Reprod,2003,18(8):1972-1723.
10De Mouzon J,Goossens V,Bhattachaya S,et al.Assisted reproductive technology in Europe,2006:results generated from European registers by ESHRE[J].Hum Reprod,2010,25(8):1851-1862.
4Gunby J, Daya S. Assisted reproductive technologies (ART) in Canada: 2001 results from the Canadian ART register [ J]. Fertil Steril, 2005, 84 (3): 590.
5Society for Assisted Reproductive Technology. Assisted reproductive technology in the United States: 2000 results generated from the American Society for Reproductive Medicine /Society for Assisted Reproductive Technology Registry [J]. Fertil Steril, 2004, 81 (5) : 1207.
6Schieve LA, Tatham L, Peterson HB et al. Spontaneous abortion among pregnancies conceived using assisted reproductive technology in the United States (J). Obstet Gynecol, 2003 , 101 (5part1) : 959.
7Wang JX, Norman R J, Wilcox AJ. Incidence of spontaneous abortion among pregnancies produced by assisted reproductive technology [J] . Hum Reprod, 2004, 19 (1) : 272.
8Lathi RB, Milki AA. Rate of aneuploidy in miscarriages following in vitro fertilization and intracytoplasmic sperm injection (J) . Fertil Steril, 2004, 81 (5): 1270.
9Simmons R,Doyle P,Maconochie N.Dramatic reduction in triplet and higher order births in England and Wales[J].Br J Obstet Gynaecol,2004,111(8):856-858.
10Papageorghiou AT,Liao AW,Skentou C,et al.Trichorionic triplet pregnancies at 10-14 weeks:outcome after embryo reduction compared to expectant management[J].J Matern Fetal Neonatal Med,2002,11(5):307-312.
