D6 blastocyst transfer on day 6 in frozen-thawed cycles should be avoided: a retrospective cohort study

• Main Authors: Huiling Xu (Author), Shumin Qiu (Author), Xiaojing Chen (Author), Suqin Zhu (Author), Yan Sun (Author), Beihong Zheng (Author)
• Format: Book
• Published: BMC, 2020-09-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background There is no definitive evidence about the suitable timing to transfer blastocysts formed and cryopreserved on day 6 (D6 blastocysts) in frozen-thawed embryo transfer (FET) cycles. This study aimed to investigate the suitable timing to transfer D6 blastocysts in FET cycles and to...