1. Division of Cardiology, Department of Medicine, Faculty of Medicine; Chulalongkorn University and King Chulalongkorn Memorial Hospital; Bangkok Thailand
2. Department of Internal Medicine; Bassett Medical Center; Cooperstown NY USA
3. Division of Cardiology, Department of Medicine; University of Mississippi Medical Center; Jackson MS USA
4. Department of Military and Community Medicine; Phramongkutklao College of Medicine; Bangkok Thailand
5. Department of Internal Medicine; Texas Tech University Health Sciences Center; Lubbock TX USA
6. Division of Nephrology, Department of Medicine; University of Mississippi Medical Center; Jackson MS USA