Fig. 1From: Does the sex ratio of singleton births after frozen single blastocyst transfer differ in relation to blastocyst development?Data selection process for analysis of perinatal outcomes in singleton live births as a result of the first single blastocyst frozen embryo transfer (FET) cycles. Note: Flow chart showing exclusions made to singleton cycles for analysis data to identify component subsets that were merged to construct the final study dataset. PGT = preimplantation genetic testingBack to article page