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.