1. Department of Haematology Hospital Universitario La Princesa Madrid Spain
2. Department of Haematology Hospital Central de Asturias Oviedo Spain
3. Department of Haematology Hospital Severo Ochoa de Leganés Madrid Spain
4. Department of Haematology Hospital Ramón y CajalMadrid Spain
5. Department of Haematology Hospital Quirón de Madrid Madrid Spain