1 FROM Research Foundation, Papa Giovanni XXIII Hospital, Bergamo, Italy.
2 Institute of Pathology, University of Cologne, Cologne, Germany.
3 Department of Internal Medicine I, Division of Haematology and Haemostaseology, Medical University of Vienna, Vienna, Austria.
4 Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, NY, USA.
5 Department of Experimental and Clinical Medicine, Centre of Research and Innovation of Myeloproliferative Neoplasms, Azienda Ospedaliera Universitaria Careggi, University of Florence, Florence, Italy.
6 Division of Pathology, Department of Pathophysiology and Transplantation, University of Milan, and IRCCS Ca' Granda-Maggiore Policlinico Hospital Foundation, Milan, Italy.
7 Institute of Pathology, Medical University of Graz, Graz, Austria.