1. Division of Transfusion Science, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
2. Department of Ophthalmology, Faculty of Medicines, Chiang Mai University, Chiang Mai, Thailand
3. Blood Bank Section, Maharaj Nakorn Chiang Mai Hospital, Faculty of Medicines, Chiang Mai University, Chiang Mai, Thailand
4. Department of Computer Science, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand