Despite the long wait most of the time, it’s truely worth it. Dr Doong’s experience and knowledge is even better than any specialist. My daughter has breathing issue at night and even the ENT doctor couldn’t find the true reason behind except Dr Doong. If we have any health issue that’s not ordinary cold and flu, Dr Doong is the only GP our family trust into. He truely cares about his patients and aim to help as many patients as he could, not for the profit. Great respect and god bless Dr Doong!