1. Department of Paediatrics The Chinese University of Hong Kong Hong Kong Hong Kong SAR
2. Department of Paediatrics The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
3. Department of Paediatrics and Adolescent Medicine Hong Kong Children’s Hospital New Territories Hong Kong SAR
4. Red Cross Blood Transfusion Service Hospital Authority Hong Kong Cord Blood Bank New Territories Hong Kong SAR
5. Hong Kong Hub of Paediatric Excellence The Chinese University of Hong Kong Hong Kong Hong Kong SAR