Yao Sen is still very famous in the circle. He returned to China as a doctor after studying abroad very early (at that time, the doctor was still a phoenix feather water chestnut). It seems to be the second military doctor. But this person is said to have a low emotional intelligence, and his words and deeds are quite offensive. But it can't be said that people won't correct it! Will there be a lot of orthodontists (and experts to judge), you are a layman, you can only say that you are not satisfied with what he corrected you, and you really can't judge.