Deepti H. Radia, MRCPI, FRCPath^1*, Jason Gotlib, MD, MS², Mark W. Drummond, PhD, FRCPath^3*, Tracy I. George, MD⁴, Hui-Min Lin, PhD^5*, Saša Dimitrijević, PhD^6*, Javier I. Munoz-Gonzalez, PhD^6*, Ilda Bidollari, MD, MBA^5*, Michael W. Deininger, MD, PhD⁷, Daniel J. DeAngelo, MD, PhD⁸ and Andreas Reiter, MD⁹

¹Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom
²Department of Hematology, Stanford Cancer Institute/Stanford University School of Medicine, San Carlos, CA
³Beatson Cancer Centre, Glasgow, United Kingdom
⁴ARUP Laboratories, Salt Lake City, UT
⁵Blueprint Medicines Corporation, Cambridge, MA
⁶Blueprint Medicines (Switzerland) GmbH, Zug, Switzerland
⁷Versiti Blood Research Institute, Milwaukee, WI
⁸Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
⁹Department of Hematology and Oncology, University Medical Centre Mannheim, Mannheim, Germany

Daniel J. DeAngelo, MD, PhD^1*, Vinod A. Pullarkat, MD^2*, Miguel Piris-Villaespesa^3*, Tracy I. George, MD⁴, Jay L. Patel, MD^5*, Celalettin Ustun, MD⁶, Prithviraj Bose, MD⁷, Mark L Heaney, MD, PhD^8*, Jessica Sachs, MD⁹, Lei Sun, PhD^9*, Amanda Pilla^9*, Benjamin Exter, PharmD^9*, Hina A. Jolin, PharmD^9* and Tsewang Tashi, MD^10*

¹Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
²Department of Hematology and Hematopoietic Cell Transplantation and Gehr Family Center for Leukemia Research, City of Hope Comprehensive Cancer Center, Duarte, CA
³Hospital Universitario Ramón y Cajal, Madrid, Spain
⁴ARUP Laboratories, Salt Lake City, UT
⁵ARUP Laboratories, University of Utah, Salt Lake City, UT
⁶Division of Hematology, Oncology, and Cell Therapy, Rush University Medical Center, Chicago, IL
⁷The University of Texas MD Anderson Cancer Center, Houston, TX
⁸Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
⁹Cogent Biosciences, Inc., Cambridge, MA
¹⁰Division of Hematology and Hematologic Malignancies, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT

Aaron T. Gerds, MD, MS¹, Ruben Mesa, MD, FACP², Alessandro M Vannucchi, MD³, Haifa Kathrin Al-Ali, MD^4*, David Lavie, MD^5*, Andrew Kuykendall, MD⁶, Sebastian Grosicki, MD, PhD⁷, Alessandra Iurlo, MD, PhD^8*, Yeow Tee Goh, MBBS⁹, Mihaela Lazaroiu, MD¹⁰, Miklos Egyed, MD, PhD^11*, Maria Laura Fox, MD^12*, Donal P. McLornan, MD, PhD^13*, Andrew Charles Perkins, MBBS, PhD¹⁴, Sung-Soo Yoon, MD, PhD^15,16, Vikas Gupta, MD, FRCP, FRCPath¹⁷, Jean-Jacques Kiladjian, MD¹⁸, Rafe Donahue, PhD^19*, Jun Kawashima, MD^19* and Srdan Verstovsek, MD, PhD²⁰

¹Department of Hematology and Medical Oncology,, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
²UT Health San Antonio Cancer Center, San Antonio, TX
³University of Florence, Firenze, Italy
⁴University Hospital of Halle, Halle, Germany
⁵Hadassah-Hebrew University Medical Centre, Jerusalem, Israel
⁶Department of Malignant Hematology, H. Lee Mofitt Cancer Center, Tampa, FL
⁷Medical University of Silesia, Katowice, Poland
⁸Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
⁹Department of Hematology, Singapore General Hospital, Singapore, Singapore
¹⁰Policlinica de Diagnostic Rapid, Brasov, Romania
¹¹Somogy County Mór Kaposi General Hospital, Kaposvár, Hungary
¹²University Hospital Vall d’Hebron, Barcelona, Spain
¹³Haematology Department, Guy's and St Thomas' NHS Trust, London, United Kingdom
¹⁴Australian Centre for Blood Diseases, Monash University, Melbourne, Australia
¹⁵Division of Hematology/Medical Oncology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea, Republic of (South)
¹⁶Seoul National University Hospital, Seoul, Korea, Republic of (South)
¹⁷Division of Medical Oncology and Hematology, University Health Network, Toronto, ON, Canada
¹⁸Université de Paris, AP-HP, Hôpital Saint-Louis, Centre d’Investigations Cliniques, Paris, France
¹⁹Sierra Oncology Inc., San Mateo, CA
²⁰Leukemia Department, The University of Texas MD Anderson Cancer Center, Houston, TX

Stephen T Oh, MD, PhD¹, Ruben Mesa, MD, FACP², Claire N. Harrison, DM³, Prithviraj Bose, MD⁴, Aaron T. Gerds, MD, MS⁵, Mark L. Heaney, MD⁶, Vikas Gupta, MD, FRCP, FRCPath⁷, Bart L. Scott, MD⁸, Jean-Jacques Kiladjian, MD⁹, Alessandro Lucchesi, MD, PhD^10*, Sarah Buckley, MD^11*, Shanthakumar Tyavanagimatt, PhD^11*, Karisse Roman-Torres^11*, John Mascarenhas, MD¹² and Srdan Verstovsek, MD, PhD¹³

¹Siteman Cancer Center, Washington University School of Medicine, Saint Louis, MO
²UT Health San Antonio MD Anderson Cancer Center, San Antonio, TX
³Guys and St Thomas NHS Trust, London, United Kingdom
⁴The University of Texas MD Anderson Cancer Center, Houston, TX
⁵Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
⁶Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY
⁷Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
⁸Fred Hutchinson Cancer Research Center, Seattle, WA
⁹Hopital Saint-Louis, Paris, France
¹⁰Hematology Unit, IRCCS Istituto Romagnolo per lo Studio dei Tumori (IRST) "Dino Amadori", Meldola, FC, Italy
¹¹CTI BioPharma, Seattle, WA
¹²Department of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
¹³MD Anderson Cancer Center, University of Texas, Houston, TX

Harinder Gill, MD, MBBS, FRCP, FRCPath¹, Lester Au^1*, Rita Yim, PhD^1*, Lynn Chin^1*, Vivian Li^1*, Paul Lee^1*, Garret MK Leung, MBBS^1*, Carmen Lee^1*, Tony Kwun Yat Wu, MBBS, BSc^1*, Cheong Ngai^1*, Ryan Ho^1*, Albert Chun Fung Sin^2*, Hsin-An Hou, MD, PhD³, Chih-Cheng Chen, MD⁴ and Yok-Lam Kwong, MD^1*

¹Department of Medicine, The University of Hong Kong, Hong Kong, Hong Kong
²Department of Pathology, The University of Hong Kong, Hong Kong, Hong Kong
³Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
⁴Division of Hematology and Oncology, Department of Medicine, Chang Gung Memorial Hospital at Chiayi, Chiayi, Taiwan, Taiwan

Joseph Scandura, MD, PhD¹, Srdan Verstovsek, MD, PhD², Marina Kremyanskaya, MD, PhD³, Moshe Talpaz, MD⁴, Raajit K Rampal, MD, PhD⁵, Alessandro Vannucchi, MD⁶, Vikas Gupta, MD, FRCP, FRCPath⁷, Francesca Palandri, PhD, MD^8*, Andrea Patriarca, MD^9*, Prithviraj Bose, MD¹⁰, Dong Chen, M.D., Ph.D¹¹, Oksana Zavidij, PhD^12*, Jike Cui, PhD^12*, Tzuu-Wang Chang, PhD^12*, Pietro Taverna, PhD¹², John Mascarenhas, MD¹³ and Claire N. Harrison, DM¹⁴

¹Richard T. Silver, M.D. Myeloproliferative Neoplasms (MPN) Center, Weill Cornell Medicine, New York, NY
²MD Anderson Cancer Center, Houston, TX
³Tisch Cancer Institute, Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
⁴University of Michigan Comprehensive Cancer Center, Ann Arbor, MI
⁵Memorial Sloan Kettering Cancer Center, New York, NY
⁶University of Florence, Azienda Ospedaliero Universitaria Careggi, CRIMM, Florence, Italy
⁷Department of Medicine, University of Toronto, Toronto, ON, Canada
⁸IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia "Seràgnoli", Bologna, Italy
⁹Hematology Unit, Department of Translational Medicine, University of Eastern Piedmont and AOU Maggiore della Carità, Novara, Italy
¹⁰The University of Texas MD Anderson Cancer Center, Houston, TX
¹¹Mayo Clinic, Rochester, MN
¹²Constellation Pharmaceuticals, Inc., a MorphoSys Company, Boston, MA
¹³Department of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
¹⁴Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom