1. Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank, and Buddhist Tzu Chi Bone Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre; Buddhist Tzu Chi General Hospital; Hualien Taiwan
2. Department of Laboratory Medicine; Tzu Chi University; Hualien Taiwan
3. Department of Surgery; Children's Hospital of Eastern Ontario (CHEO)/University of Ottawa; Ottawa, Ontario Canada