1. Research Unit Basque Center for Blood Transfusion and Human Tissues Osakidetza, Galdakao Spain
2. Cell Therapy, Stem Cells and Tissues Group Biocruces Bizkaia Health Research Institute Barakaldo Spain
3. Histocompatibility Centro de Transfusión de Madrid Madrid Spain
4. Instituto de Bioingeniería Universidad Miguel Hernández de Elche Alicante Spain
5. Instituto de Investigación Sanitaria Hospital General y Universitario de Alicante (ISABIAL) Alicante Spain
6. Hospital Clínico Universitario de Valencia/Instituto de Investigación Sanitaria INCLIVA Valencia Spain
7. School of Medicine University of Valencia Spain
8. Hematology Department University Hospital La Paz Madrid Spain
9. Hospital La Paz Institute for Health Research IdiPAZ University Hospital La Paz Madrid Spain
10. Pediatric Hemato‐Oncology Department University Hospital La Paz Madrid Spain
11. Faculty of Medicine Universidad Autónoma de Madrid Madrid Spain