In the UK, the number of triplet births plummeted from 2001 after the HFEA imposed a limit of two embryos for most women, but the twin birth rate has remained high, which is why the expert group is calling for further action.
In the UK, the number of triplet births plummeted from 2001 after the HFEA imposed a limit of two embryos for most women, but the twin birth rate has remained high, which is why the expert group is calling for further action.
在英国，自从2001年HFEA限制多数妇女只能一次移植2个胚胎以后，三胞胎出生人数直线下降，但双胞胎的出生率仍高居不下，这便是专家组呼吁采取进一步行动的原因了。