They are all third-class and first-class
If there is diet therapy, there should be relevant departments.
As for appointment registration, you can call 400-670- 1500* 17 to ask which hospital doctor is more suitable for them.
The local people only know which well-known hospital it is, but the specific doctor's words will not be known unless he goes to see a doctor, so he has to ask the institution that knows these things.