1. Immunology Unit, Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
2. Department of Medicine, Mount Auburn Hospital, Beth Israel Lahey Health, Cambridge, MA
3. Department of Internal Medicine, Weiss Memorial Hospital, Chicago, IL
4. Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY
5. Faculty of Medicine, Chiang Mai University, Chiang Mai
6. Department of Surgery, School of Medicine, Mae Fah Luang University, Chiang Rai
7. Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand