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Groenewoud, E., Cohlen, B., Al-Oraiby, A., Brinkhuis, E.A., Broekmans, F.J., de Bruin, J.P., et al. (2016) A Randomized Controlled, Non-Inferiority Trial of Modified Natural versus Artificial Cycle for Cryo-Thawed Embryo Transfer. Human Reproduction, 31, 1483-1492.
https://doi.org/10.1093/humrep/dew120

has been cited by the following article:

• TITLE: Endometrial Preparation for Frozen Embryo Transfer by Supplemented Natural Cycle versus Hormone Replacement Cycle in Regularly Cycling Women

  AUTHORS: Suzan Samir Elsharkawy, Tamer Hanafy Mahmoud, Mervat Sheikh-Elarab Elsedeek, Eman Monier Abd Elkader Amer

  KEYWORDS: Intracytoplasmic Sperm Injection (ICSI), Infertility, Frozen Cycles

  JOURNAL NAME: Open Journal of Obstetrics and Gynecology, Vol.9 No.6, June 12, 2019

  ABSTRACT: BACKGROUND: The first successful pregnancy from a frozen-thawed embryo transfer (FTET) was reported in 1983 and after more than three decades, significant changes have been introduced into clinical practice. OBJECTIVE: To compare endometrial preparation for frozen thawed embryo transfer (FTET) in supplemented natural cycle (NC) by hCG (human chorionic gonadotropin) versus HRT (hormonal replacement therapy) by estrogen and progesterone in regularly cycling women. METHODS: A prospective trial was conducted on 40 patients that were divided into two treatment groups. The first group underwent endometrial preparation by supplemented natural cycle by HCG, and the second group underwent endometrial preparation by HRT (estrogen and progesterone). RESULTS: No significant difference was revealed between the two groups regarding ongoing clinical pregnancy rate. CONCLUSION: This study concluded that there is no significant difference in clinical pregnancy rate between the two methods of endometrial preparation for frozen thawed embryo transfer; supplemented natural cycle by hCG or HRT by estrogen and progesterone, in regularly cycling women.