1. Gastroenterology Department, King Khalid University Hospital, King Saud Medical City, Riyadh, Saudi Arabia
2. Gastroenterology and Hepatology Unit, Al-Adan Hospital and Al-Salam International Hospital, Kuwait City, Kuwait
3. Gastroenterology and Endoscopy Unit, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
4. Medical Affairs Department, AbbVie Biopharmaceuticals GmbH, Jeddah, Saudi Arabia
5. Medical Affairs Department, AbbVie Biopharmaceuticals GmbH, Dubai, United Arab Emirates, Kuwait
6. Gastroenterology Unit, Mubarak Al-Kabeer Hospital, Kuwait City, Kuwait