The Human Fertilization and Embryology Authority said Tuesday that it was still " early days" of the treatment.

周二，人类受精和胚胎学管理局表示，目前，这种技术仍处于“早期”阶段。

Britain's Human Fertilization and Embryology Authority said only that fewer than five babies were born as a result of the process.

英国人类受精和胚胎学管理局只表示，这种技术仅帮助诞下不到5名婴儿。

No one has yet applied for a license to perform such experiments, according to the Human Fertilization and Embryology Authority, which will carefully screen each request.

根据人类生育和胚胎协会的数据，迄今为止还没有人申请从事此项实验，但它会认真审核每一个申请。