1. Division of Gastroenterology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
2. Graduate Institute of Clinical Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan
3. Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
4. Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan
5. Graduate Institute of Craniofacial and Oral Science, Chang Gung University, Taoyuan, Taiwan
6. Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
7. Department of Physical Medicine & Rehabilitation, Chang Gung Memorial Hospital at Linkou and College of Medicine, Chang Gung University, Kwei-Shan, Taoyuan, Taiwan