1. Department of Gastroenterology Hitit University Erol Olcok Training and Research Hospital Corum Turkey
2. Department of Physical Medicine and Rehabilitation Sultan Abdulhamid Han Training and Research Hospital Istanbul Turkey
3. Department of Physical Medicine and Rehabilitation Afyon Emirdağ State Hospital Afyon Turkey
4. Department of Gastroenterology Sancaktepe Şehit Prof Dr Ilhan Varank Training and Research Hospital Istanbul Turkey