Progression of JAK2-mutant polycythemia vera to CALR-mutant myelofibrosis severely impacts on disease phenotype and response to therapy. Issue 13 (10th November 2019) - Holmström, Morten Orebo; Novotny, Guy W.; Petersen, Jesper; Aaboe-Jørgensen, Mia; Hasselbalch, Hans Carl; Andersen, Mads H.; Nielsen, Signe Ledou; Fassi, Daniel El; Schöllkopf, Claudia