Elgindy 2011.

Study characteristics
Methods	Study type: randomised controlled trial in parallel groups Country: Egypt
Participants	Number of participants randomised: 200 Age: BS 28.47 and CS 27.7 Number of previous treatments: not stated Infertility duration: BS 6.22 and CS 6.84 years Prognosis: not stated Inclusion criteria: participants under 35 years of age, with regular cycles, serum day‐3 FSH concentration < 9.5 IU/L and antral follicle count > 6. At least four good‐quality embryos on day 3 Exclusion criteria: not described
Interventions	BS group: N = 100 CS group (day 2): N = 100 Description of the cycles: Long protocol (down‐regulation with GnRH agonist and stimulation with rFSH and HCG) Embryos were cultured in sequential media (Sage; Cooper Surgical, USA)
Outcomes	Live birth rate per fresh embryo transfer Clinical pregnancy rate Miscarriage rate Failure rate to transfer embryos
Notes