I owe Dr. Tsoi for my ability to walk and live a normal life pain-free. I have a difficult case, untreatable by any branch of Western medicine (and I tried them all), but he fixed it. It did take years, but improvement was steady, and I have been on my feet and able to exercise (which I never thought I would be able to do again without injury) for 10 years now. If you have chronic pain, just trust Dr. Tsoi.