[1] Wang JX,Norman RJ,Wilcox AJ.Incidence of spontaneous abortion among pregnancies produced by assisted reproductive technology[J].Hum Reprod,2004,19(2):272-277. [2] Klipstein S,Regan M,Ryley DA,et al.One last chance for pregnancy:a review of 2,705 in vitro fertilization cycles initiated in women age 40 years and above[J].Fertil Steril,2005,84(2):435-445. [3] Tearne JE.Older maternal age and child behavioral and cognitive outcomes:a review of the literature[J].Fertil Steril,2015,103(6):1381-1391. [4] Jackson S,Hong C,Wang ET,et al.Pregnancy outcomes in very advanced maternal age pregnancies:the impact of assisted reproductive technology [J] .Fertil Steril,2015 ,103(1):76-80. [5] Bartmann AK,Romao GS,Ramos Eda S,et al.Why do older women have poor implantation rates A possible role of the mitochondria [J].J Assist Reprod Genet,2004 ,21(3):79-83. [6] 苏迎春,黄亚哲,孙莹璞,等.体外受精胚胎移植治疗妊娠后早期流产的相关因素分析[J].现代妇产科进展,2008,17(8):635-636. [7] Vander Gaast MH,Classen- Linke I,Krusche CA ,et al.Impact of ovarian stimulation on mid-luteal endometrial tissue and secretion markers of receptivity[J].Reprod Biomed Online,2008,17 (4):553-563. [8] Veleva Z,Tiitinen A,Vilska S,et al.High and low BMI increase the risk of miscarriage after IVF/ICSI and FET [J].Hum Reprod,2008 ,23(4):878-884. [9] 罗璐,王琼,周灿权,等.体重对体外受精-胚胎移植妊娠结局的影响[J].中国实用妇科与产科杂志,2010,26(3):205-208. [10] Gartner R.Thyroid disorders during pregnancy [J].Dtsch Med Wochenschr,2009,134(3):83-86. [11] 刘凤,陶芳标.妊娠与亚临床甲状腺功能减退症的相互影响[J].中华妇产科杂志,2008,43(10):787-790.