1. Clinical Research Centre, Selayang Hospital Ministry of Health Malaysia Batu Caves Selangor Malaysia
2. Clinical Research Centre, Sultanah Bahiyah Hospital Ministry of Health Malaysia Alor Setar Kedah Malaysia
3. Pharmacovigilance Section, Center For Post‐Registration and Cosmetic Control National Pharmaceutical Regulatory Agency (NPRA) Petaling Jaya Selangor Malaysia
4. Gastroenterology Unit, Department of Medicine, Sultanah Bahiyah Hospital Ministry of Health Malaysia Alor Setar Kedah Malaysia
5. Hepatology Department Selayang Hospital, Ministry of Health Malaysia Batu Caves Selangor Malaysia