1. Division of Gastroenterology and Nutrition, Department of Paediatrics, Mackay Memorial Hospital, Taipei 10449, Taiwan
2. Mackay Medicine, Nursing and Management College, Taipei 25245, Taiwan
3. Institute of Biotechnology and Department of Chemical Engineering, National Taipei University of Technology, No. 1, Sec. 3, Chung-Hsiao East Road, Taipei 10608, Taiwan
4. Department of Medicine, Mackay Medical College, Taipei 25246, Taiwan
5. Department of Medical Research, Mackay Memorial Hospital, Taipei 25160, Taiwan
6. Division of Gastroenterology and Nutrition, Department of Paediatrics, Mackay Memorial Hospital, No. 690, Sec. 2, Guangfu Road, Hsinchu 30071, Taiwan
7. Department of Paediatrics, Taipei Medical University, Taipei 11031, Taiwan