1. National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
2. Department of Preclinical Science, Faculty of Medicine, Thammasat University, Khlong Luang, Pathum Thani, Thailand
3. Gastroenterology Unit, Department of Medicine, Thammasat University Hospital, Khlong Luang, Pathum Thani, Thailand
4. Chulabhorn International College of Medicine (CICM), Thammasat University, Pathum Thani, Thailand
5. Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia