Brugnon 2010.

Study characteristics
Methods	Study type: randomised controlled trial in parallel groups Country: France
Participants	Number of participants randomised: 107 Age: BS and CS: not stated Number of previous treatments: not stated Infertility duration: not stated Prognosis: good prognosis Inclusion criteria: if more than five oocytes were retrieved and three top‐quality embryos (4 blastomeres, < 20% fragmentation without multinuclear blastomeres) were observed at day two, the couples were included in the study. Exclusion criteria: Not described
Interventions	BS group: N = 52 CS group (day 3): N = 56 Description of the cycles: Sequential media was used in both groups. The freezing method was standard slow freezing method at day 3(FreezeKit, Vitrolife) and at day 5/6 (G‐ FreezeKit Blast, Vitrolife)
Outcomes	Cumulative pregnancy rate Clinical pregnancy rate per embryo transfer
Notes