1 School of Medicine, Tzu Chi University, Hualien, Taiwan.
2 School of Medicine, Tzu Chi University, Hualien, Taiwan; Emergency Department, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi, Taiwan.
3 Division of Cardiovascular Surgery, Department of Surgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan; Department of Surgery, School of Medicine, Tzu Chi University, Hualien, Taiwan.