ㅌㄹㅇ (Seoul) It's a famous place, but it's said to be dangerous and have many side effects. But I really wanted to have the surgery anyway , so I went all the way to Seoul even though I 'm from Daegu . I consulted with a doctor. He said there were 4 holes in the front and 2 in the back (total of 6 holes). He said he would have to pull them out to find out the capacity. In other places, there are usually 4 holes, so I guess I'll have to think about it.