1 Department of Physiology, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
2 Division of Cardiovascular Medicine, Department of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
3 Division of Hospital and Ambulatory Medicine, Department of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
4 Department of Radiology, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
5 Division of Cardiothoracic Surgery, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
6 Division of Cardiovascular Medicine, Department of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Bangkok, Thailand. Pairoj.md@gmail.com.