1. 1Department of Medicine, Jackson Memorial Hospital, University of Miami, Miami, FL
2. 2Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3. 3Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
4. 4Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
5. 5Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
6. 6Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
7. 7Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
8. 8Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, Thailand
9. 9Department of Medicine, Massachusetts General Hospital, Boston, MA
10. 10Department of Medicine, Brigham and Women’s Hospital, Boston, MA
11. 11Department of Medicine, Veterans Affairs Medical Center, West Roxbury, MA
12. 12Department of Medicine, University of Arizona College of Medicine, Tucson, AZ