1 School of Medicine, China Medical University Hospital, Taichung, Taiwan.
2 Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Chang Gung Memorial Hospital, Linkou Branch, Linkou, Taiwan.
3 Department of Allergy and Immunology, China Medical University Children's Hospital, Taichung, Taiwan; Research Center for Allergy, Immunology, and Microbiome (A.I.M.), China Medical University Hospital, Taichung, Taiwan; Department of Medicine, College of Medicine, China Medical University, Taichung, Taiwan. Electronic address: yongsuboon@gmail.com.
4 Division of Gastroenterology and Hepatology, Department of Internal Medicine, Landseed International Hospital, Taoyuan, Taiwan. Electronic address: yiichinyuan@gmail.com.