Figure 1From: Who does not participate in a follow-up postal study? a survey of infertile couples treated by in vitro fertilization Flow chart.“Birth” indicates a live birth following IVF treatment in the inclusion center. “Having another child after live birth following IVF treatment in the inclusion center” or “having a child after unsuccessful treatment in the inclusion center” included: spontaneous live birth, live birth following another treatment, and adoption. * Non-respondents included 156 couples (34 births) who returned the refusal sheet.Back to article page