I was referred to Dr. Chung by a friend since I had shoulder/neck pain for some time. I had never heard of adjusting only the atlas joint and was intrigued that this might be a treatment method. Dr. Chung is very personable and takes time to explain in detail what he is doing. I noticed after one visit that I felt more "upright" standing straighter somehow. I did still have shoulder and neck pain, but after the second visit it seemed to decrease somewhat. Also I felt the upright feeling again stronger after the second visit. I look forward to the neck and shoulder pain going away, but perhaps this takes some time, since I had this for 1 year already before seeing Dr. Chung.