1. 1The University of Texas MD Anderson Cancer Center, Houston, TX
2. 2UT Health San Antonio Cancer Center, San Antonio, TX
3. 3Princess Margaret Cancer Centre, Toronto, ON, Canada
4. 4Hadassah-Hebrew University Medical Center, Jerusalem, Israel
5. 5Centre Hospitalier Universitaire de Nantes (CHU de Nantes), Nantes, France
6. 6Service d’hématologie, Centre hospitalier régional universitaire de Lille (CHRU Lille), Lille, France
7. 7Clinic of Hematology, Cellular Therapy, and Hemostaseology, University of Leipzig, Leipzig, Germany
8. 8Uniwersytet Medyczny w Lublinie, Lublin, Poland
9. 9Institut Català d'Oncologia, Hospital Germans Trias i Pujol, Josep Carreras Leukemia Research Institute, Universitat Autònoma de Barcelona, Badalona, Spain
10. 10Division of Hematology, Department of Medicine, Washington University School of Medicine, St. Louis, MO
11. 11Université de Paris, Assistance Publique–Hôpitaux de Paris (AP-HP), Hôpital Saint-Louis, Centre d'Investigations Cliniques, INSERM, Paris, France
12. 12Center of Research and Innovation of Myeloproliferative Neoplasms (CRIMM), Department of Experimental and Clinical Medicine, University of Florence, Careggi University Hospital, Florence, Italy
13. 13Cleveland Clinic, Cleveland, OH
14. 14Teaching Hospital Mór Kaposi, Kaposvár, Hungary
15. 15Department of Internal Medicine, Haematology and Oncology, University Hospital Brno, Brno, Czech Republic
16. 16Faculty of Medicine, Masaryk University, Brno, Czech Republic
17. 17Uniwersytet Jagielloński Collegium Medicum, Krakow, Poland
18. 18Sierra Oncology, San Mateo, CA
19. 19Guy's and St Thomas' National Health Services (NHS) Foundation Trust, London, United Kingdom