1. Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
2. Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3. Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
4. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
5. Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
6. King Chulalongkorn Memorial Hospital, Bangkok, Thailand
7. Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
8. Department of Medicine, Massachusetts General Hospital, Boston
9. Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
10. Department of Medicine, University of Arizona College of Medicine, Tucson