Motta 1998.

Study characteristics
Methods	Study type: randomised controlled trial in parallel groups Country: Brazil
Participants	Number of participants randomised 83, in 116 cycles Age: not stated Number of previous treatments: not stated Infertility duration: not stated Prognosis: unselected participants Inclusion criteria: unselected Exclusion criteria: not described
Interventions	BS group: N = 58 CS group (day 2): N = 58 Description of the cycles: Long protocol (down‐regulation with GnRH agonist and stimulation with rFSH) The media used was sequential media P1 or Irvines Blast.
Outcomes	Clinical pregnancy rate Multiple pregnancy rate Embryo freezing rate Failure to transfer
Notes	Prognosis: moderate to good. No letter sent