In 1999 because of back pains I've visited several doctors and physical therapists who have advised me to sit on an orthopaedic ball while I'm working. I've found that sitting on this ball helps a lot but can become tiring and impractical after a long period of working. This is why I've designed a special chair for my own use which perfectly imitated the ball-sitting.It wasn't after some of my clients, who had come to visit me for advertising banners, told me that they'd like to have the same chair, that I began thinking how I can organize sales and marketing for it. But first I needed an expert medical opinion. I contacted a professional orthopedist, Prof. Dr. Sci. Janko Popovich who was fairly skeptical during our first phone conversation, telling me that he examins over 20 of these chai...