Trounson A, Mohr L. Human pregnancy following cryopreservation, thawing and transfer of an eight-cell embryo [J]. Nature,1983,305(5936):707-709.
[2]
Shi Y,Sun Y,Hao C, et al. Transfer of fresh versus frozen embryos in ovulatory women[J]. N Engl J Med, 2018, 378(2):126-136.
[3]
Roque M,Haahr T,Geber S, et al. Fresh versus elective frozen embryo transfer in IVF/ICSI cycles: a systematic review and meta-analysis of reproductive outcomes[J]. Hum Reprod Update, 2018, 25(1):678.
[4]
Chami A,Saridogan E. Endometrial polyps and subfertility[J]. J Obstet Gynaecol India,2017,67(1):9-14.
Makrigiannakis A, Vrekoussis T, Zoumakis E, et al. The role of HCG in implantation: a mini-review of molecular and clinical evidence[J]. Int J Mol Sci, 2017,18(6):1-8.
Navali N,Gassemzadeh A,Farzadi L,et al. Intrauterine administration of HCG immediately after oocyte retrieval and the outcome of ICSI: a randomized controlled trial[J]. Hum Reprod,2016,31(11):2520-2526.
[13]
Schumacher A,Brachwitz N,Sohr S,et al. Human chorionic gonadotropin attracts regulatory T cells into the fetal-maternal interface during early human pregnancy [J]. J Immunol,2009,182(9):5488-5497.
[14]
Huang P,Wei L,Li X. A study of intrauterine infusion of human chorionic gonadotropin (HCG) before frozen-thawed embryo transfer after two or more implantation failures[J]. Gynecol Endocrinol, 2016:1-3.
[15]
Gao M, Jiang X, Li B, et al. Intrauterine injection of human chorionic gonadotropin before embryo transfer can improve in vitro fertilization-embryo transfer outcomes: a meta-analysis of randomized controlled trials[J]. Fertil Steril,2019,112(1):89-97.
[16]
Xu Z, Chen W, Chen C, et al. Effect of intrauterine injection of human chorionic gonadotropin before frozen-thawed embryo transfer on pregnancy outcomes in women with endometriosis[J]. J Int Med Res, 2019, 47(7):67.
[17]
Craciunas L,Tsampras N,Raine F N,et al. Intrauterine administration of human chorionic gonadotropin (HCG) for subfertile women undergoing assisted reproduction[J]. Cochrane Database Syst Rev,2018,10:CD11537.
[18]
Eftekhar M, Rahmani E, Eftekhar T. Effect of adding human chorionic gonadotropin to the endometrial preparation protocol in frozen embryo transfer cycles[J]. Int J Fertil Steril, 2012, 6(3):175-178.
Xu Z, Chen W, Chen C,et al. Effect of intrauterine injection of human chorionic gonadotropin before frozen-thawed embryo transfer on pregnancy outcomes in women with endometriosis[J]. J Int Med Res, 2019, 47(7):123.
Belli M, Zhang L, Liu X, et al. Oxygen concentration alters mitochondrial structure and function in in vitro fertilized preimplantation mouse embryos[J]. Hum Reprod,2019,3(4):601-611.
[24]
Lee Y J, Kim C H, Kim D Y, et al. Human chorionic gonadotropin-administered natural cycle versus spontaneous ovulatory cycle in patients undergoing two pronuclear zygote frozen-thawed embryo transfer[J]. Obstet Gynecol Sci, 2018, 61(2):247-252.
Montagut M, Santos R S. Frozen-thawed embryo transfers in natural cycles with spontaneous or induced ovulation: the search for the best protocol continues[J]. Hum Reprod, 2016,13:2803-2810.
[29]
Yossi M, Ariel W.Reply: Should women receive luteal support following natural cycle frozen embryo transfer? A systematic review and meta-analysis,critical assessment of a review and meta-analysis[J]. Hum Reprod Update, 2021,25:1234.
[30]
Shiotani M,Matsumoto Y, Okamoto E, et al.Is human chorionic gonadotropin supplementation beneficial for frozen and thawed embryo transfer in estrogen/progesterone replacement cycles? A randomized clinical trial[J]. Reprod Med Biol, 2017, 16(2):452.
Nathalie F W, Leif B, Sven O S. What is the optimal mutual support in assisted reproductive technology? [J]. Horm Mol Biol Clin Invest, 2021, 10(4): 92-93.
Legro R S, Paulson R J, Lobo R A, et al. Association of early beta-human chorionic gonadotrophin values with pregnancy wastage and multiple implantation in a donor oocyte programme[J]. Hum Reprod, 1995, 10(12): 3293-3296.