เครื่องกดบัตรคิวและเก้าอี้นวดไฟฟ้า To Khun Kluay Tod This is my opinion. I don't think that this chair can help the back pain. Most of the doctors believe that good posture in sitting and standing  and core strenthening exercise can improve most of the symptoms. If the symptoms persist, I will advise to do further investigation such as X-ray or MRI โดย banting ศุกร์ มิ.ย. 06, 2008 11:19 pm