1. Department of Medicine, Department of Clinical Sciences, Thammasart University Hospital, Pratumthani, Thailand.
2. Division of Infectious Diseases, Department of Clinical Sciences, Thammasart University Hospital, Pratumthani, Thailand.
3. Division of Pathology, Department of Clinical Sciences, Thammasart University Hospital, Pratumthani, Thailand.
4. Philadelphia FIGHT, Philadelphia, Pennsylvania.
5. Saint Louis University School of Public Health, St. Louis, Missouri.
6. Division of Infectious Diseases, Washington University School of Medicine, St. Louis, Missouri.