1. Department of Pharmacy, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chia-Yi 62247, Taiwan
2. School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
3. Division of Gastroenterology, Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chia-Yi 62247, Taiwan
4. School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien 97004, Taiwan
5. Department of Pharmacy, Keelung Chang Gung Memorial Hospital, Keelung 20401, Taiwan