1. Department of Hematology, Hospital Universitario de Burgos, Burgos, Spain
2. Department of Hematology, Complejo Asistencial de Ávila, Ávila, Spain
3. Department of Hematology, Hospital Central de Asturias, Oviedo, Spain
4. Department of Hematology, Hospital Universitario de La Plana, Villarreal, Spain
5. Department of Hematology, Complejo Hospitalario Universitario Insular Materno-Infantil, Las Palmas de Gran Canaria, Spain
6. Department of Hematology, Hospital Universitario de Álava, Vitoria-Gasteiz, Spain
7. Department of Hematology, Hospital Serranía de Ronda, Málaga, Spain
8. Department of Hematology, Hospital Universitario y Politécnico La Fe, Valencia, Spain