최대 이식 배아 수는 배양일수에 따라 35세 미만은 1–2개, 35세 이상은 2–3개로 제한하였다.
The maximum number of embryos that can be transferred was limited to 1 to 2 for those under 35 years old and 2 to 3 for those aged 35 and over, depending on when cultured embryo is transplanted.