1 Search and Transplant Services, The Bone Marrow Donor Programme, Singapore, Singapore
2 Histogenetics Inc., Histogenetics, HLA Laboratory, New York, New York, USA
3 Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank, and Buddhist Tzu Chi Bone Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan, ROC