1. The Blood Disease Research Unit, Sirikit Medical Centre, Bangkok, Japan
2. The Department of Pathology, Faculty of Medicine, Rhamathibodi Hospital, Bangkok, Japan
3. The First Department of Physiology, Kobe University School of Medicine, Kobe, Japan
4. The Thalassaemia Centre, Bangkok, Japan
5. The Department of Hygiene, Kobe University School of Medicine, Kobe, Japan
6. The Vaccine Centre, Salaya, Mahidol University, Thailand