Fig. 1From: Competent blastocyst and receptivity endometrium improved clinical pregnancy in fresh embryo transfer cycles: a retrospective cohort studyStudy design flow diagram. First, IVF cycle patients who met the inclusion criteria were included in the study, and patients who met the exclusion criteria were excluded. According to the embryo development days, eligible patients who underwent routine fresh IVF cycles were divided into Day 3 and Day 5 transfer groups. The baseline characteristics and laboratory data of the two groups were compared according to the clinical pregnancy outcomeBack to article page