1. Center of Research and Innovation of Myeloproliferative Neoplasms (CRIMM), Department of Experimental and Clinical Medicine, Azienda Ospedaliera Universitaria Careggi, Florence, University of Florence, Italy;
2. Fondazione per la Ricerca Ospedale Maggiore (FROM), Papa Giovanni XXIII Hospital, Bergamo, Italy;
3. Hematology, Aziende Socio Sanitarie Territoriali (ASST) Sette Laghi, University of Insubria, Varese, Italy;
4. Division of Hematology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy;
5. Department of Hematology, Hospital, Clinic de Barcelona, Barcelona, Spain;
6. Department of Oncology-Hematology, University of Milan and Papa Giovanni XXIII Hospital, Bergamo, Italy;
7. Division of Hematology, NU Hospital Group, Uddevalla, Sweden; and
8. Center of Research and Innovation of Myeloproliferative Neoplasms (CRIMM), Department of Experimental and Clinical Medicine, Azienda Ospedaliera Universitaria Careggi, Florence, Italy