1. Unitat d’Hematopatologia, Departments of Pathology and Hematology, Hospital Clinic, Institut d’Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Postgraduate School of Hematology Farreras-Valentí, Universitat de Barcelona. Barcelona, Spain
2. Institute of Hematology, University of Perugia, Perugia, Italy