1. Kissin DM., Kulkarni AD, Mneimneh A, Warner L, Boulet SL, Crawford S, et al. Embryo transfer practices and multiple births resulting from assisted reproductive technology: an opportunity for prevention. Fertil Steril. 2015;103:954-61.
2. Papanikolaou EG, Kolibianakis EM, Tournaye H, Venetis CA, Fatemi H, Tarlatzis B, et al. Live birth rates after transfer of equal number of blastocysts or cleavage-stage embryos in IVF. A systematic review and meta-analysis. Hum Reprod. 2008;23:91-9.
3. Practice Committee of the American Society for Reproductive Medicine, Practice Committee of the Society for Assisted Reproductive Technology. Blastocyst culture and transfer in clinically assisted reproduction: a committee opinion. Fertil Steril. 2018;110:1246-52.
4. Glujovsky D, Farquhar C. Cleavage-stage or blastocyst transfer: what are the benefits and harms. Fertil Steril. 2016;106:244-50.
5. Glujovsky D, Farquhar C, Quinteiro RAM, Alvarez SCR, Blake D. Cleavage stage versus blastocyst stage embryo transfer in assisted reproductive technology. Cochrane Database Syst Rev. 2016:CD002118. doi: 10.1002/14651858.CD002118.pub5
6. Bosdou JK., Venetis CA, Tarlatzis BC, Grimbizis GF, Kolibianakis EM. Higher probability of live-birth in high, but not normal, responders after first frozen-embryo transfer in a freeze-only cycle strategy compared to fresh-embryo transfer: a meta-analysis. Hum Reprod. 2019;34:491-505.
7. Zhu Q, Chen Q, Wang L, Lu X, Lyu Q, Wang Y, et al. Live birth rates in the first complete IVF cycle among 20 687 women using a freeze-all strategy. Hum Reprod. 2018;33:924-9.
8. Sfontouris IA, Martins WP, Nastri CO, Viana IG, Navarro PA, Raine-Fenning N, et al. Blastocyst culture using single versus sequential media in clinical IVF: a systematic review and meta-analysis of randomized controlled trials. J Assist Reprod Genet. 2016;33:1261-72.
9. Levi-Setti PE, Cirillo F, Smeraldi A, Morenghi E, Mulazzani GE, Albani E. No advantage of fresh blastocyst versus cleavage stage embryo transfer in women under the age of 39: a randomized controlled study. J Assist Reprod Genet. 2018;35:457-65.
10. Liu J, Zheng J, Lei YL, Wen XF. Effects of endometrial preparations and transferred embryo types on pregnancy outcome from patients with advanced maternal age. Syst Biol Reprod Med. 2019;65:181-6.
11. Zhou QW, Jing S, Xu L, Guo H, Lu CF, Gong F, et al. Clinical and neonatal outcomes of patients of different ages following transfer of thawed cleavage embryos and blastocysts cultured from thawed cleavage-stage embryos. PLoS One. 2018;13:e0207340. doi: 10.1371/journal.pone.0207340
12. Broekmans FJ, Knauff EA, te Velde ER, Macklon NS, Fauser BC. Female reproductive ageing: current knowledge and future trends. Trends Endocrinol Metab. 2007;18:58-65.
13. Murakoshi Y, Sueoka K, Takahashi K, Sato S, Sakurai T, Tajima H, et al. Embryo developmental capability and pregnancy outcome are related to the mitochondrial DNA copy number and ooplasmic volume. J Assist Reprod Genet 2013;30:1367-75.
14. Minasi MG, Colasante A, Riccio T, Ruberti A, Casciani V, Scarselli F, et al. Correlation between aneuploidy, standard morphology evaluation and morphokinetic development in 1730 biopsied blastocysts: a consecutive case series study. Hum Reprod. 2016;31:2245-54.
15. American College of Obstetricians and Gynecologists Committee on Gynecologic Practice and Practice Committee. Female age-related fertility decline. Committee Opinion No. 589. Fertil Steril. 2014;101:633-4.
16. Coticchio G, Behr B, Campbell A, Meseguer M, Morbeck DE, Pisaturo V, et al. Fertility technologies and how to optimize laboratory performance to support the shortening of time to birth of a healthy singleton: a Delphi consensus. J Assist Reprod Genet. 2021;38:1021-43. doi: 10.1007/s10815-021-02077-5
17. Bosch E, Bulletti C, Copperman AB, Fanchin R, Yarali H, Petta CA, et al. How time to healthy singleton delivery could affect decision-making during infertility treatment: a Delphi consensus. Reprod Biomed Online. 2019;38:118-30.
18. Bortoletto P, Willson S, Romanski PA, Davis OK, Rosenwaks Z. Reproductive outcomes of women aged 40 and older undergoing IVF with donor sperm. Hum Reprod. 2021;36:229-35.
19. Gardner DK, Lane M, Stevens J, Schlenker T, Schoolcraft WB. Blastocyst score affects implantation and pregnancy outcome: towards a single blastocyst transfer. Fertil Steril. 2000;73:1155-8.
20. Rienzi L, Gracia C, Maggiulli R, LaBarbera AR, Kaser DJ, Ubaldi FM, et al. Oocyte, embryo and blastocyst cryopreservation in ART: systematic review and meta-analysis comparing slow-freezing versus vitrification to produce evidence for the development of global guidance. Hum Reprod Update. 2017;23:139-55.
21. Wong KM, Mastenbroek S, Repping, S. Cryopreservation of human embryos and its contribution to in vitro fertilization success rates. Fertil Steril. 2014;102:19-26.
22. Wang X, Zhen J, Sun Z, Yu Q, Deng C, Zhou Y, et al. Effects of fifth day (D5) or sixth day (D6) frozen-thawed blastocysts on neonatal outcomes. Zygote. 2016;24:684-91.
23. Coates A, Kung A, Mounts E, Hesla J, Bankowski B, Barbieri E, et al. Optimal euploid embryo transfer strategy, fresh versus frozen, after preimplantation genetic screening with next generation sequencing: a randomized controlled trial. Fertil Steril. 2017;107:723-30.e3.
24. Wei D, Liu JY, Sun Y, Shi Y, Zhang B, Liu JQ, et al. Frozen versus fresh single blastocyst transfer in ovulatory women: a multicentre, randomised controlled trial. Lancet. 2019;393:1310-8.
25. Papanikolaou EG, Camus M, Kolibianakis EM, Van Landuyt L, Van Steirteghem A, Devroey P. In vitro fertilization with single blastocyst-stage versus single cleavage-stage embryos. N Engl J Med. 2006;354:1139-46.
26. Robinson RD. Success rates and pregnancy outcomes in thawed embryos transferred after extended culture: cryopreserved embryos versus cleavage stage cryopreserved embryos. Fertil Steril. 2018;110:59-60.
27. Li W, Xue X, Zhao W, Ren A, Zhuo W, Shi J. Blastocyst transfer is not associated with increased unfavorable obstetric and perinatal outcomes compared with cleavage-stage embryo transfer. Gynecol Endocrinol. 2017;33:857-60.
28. Practice Committee of the American Society for Reproductive Medicine, Practice Committee of the Society for Assisted Reproductive Technology. Criteria for number of embryos to transfer: a committee opinion. Fertil Steril. 2013;99:44-6.
29. Practice Committee of the American Society for Reproductive Medicine, Practice Committee of the Society for Assisted Reproductive Technology. Guidance on the limits to the number of embryos to transfer: a committee opinion. Fertil Steril. 2017;107:901-3.
30. Dar S, Lazer T, Shah PS, Librach CL. Neonatal outcomes among singleton births after blastocyst versus cleavage stage embryo transfer: a systematic review and meta-analysis. Hum Reprod Update. 2014;20:439-48.
31. Maheshwari A, Kalampokas T, Davidson J, Bhattacharya S. Obstetric and perinatal outcomes in singleton pregnancies resulting from the transfer of blastocyst-stage versus cleavage-stage embryos generated through in vitro fertilization treatment: a systematic review and meta-analysis. Fertil Steril. 2013;100:1615-21.
32. Wang X, Du M, Guan Y, Wang B, Zhang J, Liu Z. Comparative neonatal outcomes in singleton births from blastocyst transfers or cleavage-stage embryo transfers: a systematic review and meta-analysis. Reprod Biol Endocrinol. 2017;15:1-2.
33. De Vos A, Dos SS, Tournaye H, Verheyen G. Birthweight of singletons born after blastocyst-stage or cleavage-stage transfer: analysis of a data set from three randomized controlled trials. J Assist Reprod Genet. 2020;37:127-32.
34. Marconi N, Raja EA, Bhattacharya S, Maheshwari, A. Perinatal outcomes in singleton live births after fresh blastocyst-stage embryo transfer: a retrospective analysis of 67 147 IVF/ICSI cycles. Hum Reprod. 2019;34:1716-25.
35. Fang J, Zhu L, Li D, Xu Z, Yan G, Sun H, et al. Effect of embryo and blastocyst transfer on the birthweight of live-born singletons from FET cycles. J Assist Reprod Genet. 2018;35:1905-10.
36. Luna M, Duke M, Copperman A, Grunfeld L, Sandler B, Barritt J. Blastocyst embryo transfer is associated with a sex-ratio imbalance in favor of male offspring. Fertil Steril. 2007;87:519-23.
37. Maalouf WE, Mincheva MN, Campbell BK, Hardy IC. Effects of assisted reproductive technologies on human sex ratio at birth. Fertil Steril. 2014;101:1321-5.
38. Kawase Y, Tachibe T, Kamada N, Jishage KI, Watanabe H, Suzuki H. et al. Male advantage observed for in vitro fertilization mouse embryos exhibiting early cleavage. Reprod Med Biol. 2021;20:83-7.
39. Alfarawati S, Fragouli E, Colls P, Stevens J, Gutiérrez-Mateo C, Schoolcraft WB, et al. The relationship between blastocyst morphology, chromosomal abnormality, and embryo gender. Fertil Steril. 2011;95:520-4.
40. Alhelou Y, Adenan NA, Ali J. Embryo culture conditions are significantly improved during uninterrupted incubation: a randomized controlled trial. Reprod Biol. 2018;18:40-5.
41. Gleicher N, Kushnir VA, Barad, D.H. Is it time for a paradigm shift in understanding embryo selection. Reprod Biol Endocrinol. 2015;13:3.
42. Zaat T, Zagers M, Mol F, Goddijn M, Wely M, Mastenbroek S. Fresh versus frozen embryo transfers in assisted reproduction. Cochrane Database Sys Rev. 2021;2:CD011184. doi: 10.1002/14651858.CD011184.pub3