1. Gastroenterology and Hepatology Unit, Department of Medicine, Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
2. Department of Hepatology Selayang Hospital Batu Caves Selangor Malaysia
3. Subang Jaya Medical Centre Subang Jaya Selangor Malaysia
4. School of Medical Sciences Universiti Sains Malaysia Kota Bharu Kelantan Malaysia
5. KPJ Pahang Specialist Centre Kuantan Pahang Malaysia
6. Department of Primary Care Medicine, Faculty of Medicine Universiti Teknologi MARA, Selayang Campus Batu Caves Selangor Malaysia
7. Institute of Pathology, Laboratory and Forensic Medicine, Centre of Excellence for Research on Atherosclerosis and CVD Prevention Universiti Teknologi MARA, Sungai Buloh Campus Sungai Buloh Selangor Malaysia
8. Disease Control Division Ministry of Health, Malaysia Putrajaya Malaysia
9. Upper Gastrointestinal, Metabolic and Bariatric Surgery Unit, Department of Surgery Universiti Kebangsaan Malaysia Kuala Lumpur Malaysia
10. Gastroenterology Unit, Department of Medicine Universiti Kebangsaan Malaysia Kuala Lumpur Malaysia