Kaser DJ, et al. – A pilot randomized controlled trial is carried out to explore the effect of Day 3 single embryo transfer with adjunctive time–lapse selection versus Day 5 single embryo transfer with or without adjunctive time–lapse selection. According to the outcomes obtained, the evidence is insufficient to conclude that adjunctive use of the Eeva™ test on D3 or D5 improves clinical pregnancy rate (CPR) per transfer as compared to D5 selection with conventional morphology (CM).