Could you kindly let me know the interval between your two follow up visits?

您的两个随访点之间的时间有多长？

youdao

How often and how long will I (or my child) need follow-up visits?

我(或者我的孩子)需要多长时间进行随访？

youdao

How often and how long will I (or my child) need follow-up visits?

我(或者我的孩子)需要多长时间进行随访？

youdao