1. Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
2. Research Unit in Translational Hematology, Chulalongkorn University, Bangkok, Thailand
3. Department of Medicine, Faculty of Medicine, Mahidol University Ramathibodi hospital, Bangkok, Thailand
4. Department of Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
5. Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand