Marta Santaliestra^1*, Marta Garrote^2*, María Soledad Noya^3*, Manuel Pérez-Encinas^4*, María Alicia Senin^5*, Raul Perez Lopez^6*, Francisca Ferrer Marin, MD^7,8, Gonzalo Carreño, PhD^9*, Gonzalo Caballero Navarro^10*, Elena Magro^11*, Patricia Velez, MD^12*, Miguel A. Cortes Vázquez^13*, Ana Moreto Quintana^14*, Anna Angona^15*, Irene Pastor Galan^16*, Jose María Guerra^17*, M. Carmen Garcia Hernandez^18*, María Isabel Mata^19*, Ruth Stuckey, PhD^20*, Maria Teresa Gómez Casares^21*, Maria Laura Fox, MD^22*, Beatriz Cuevas^23*, Valentín García Gutiérrez Sr.²⁴, Ana Triguero^25*, Eduardo Arellano-Rodrigo^26*, Juan Carlos Hernandez Boluda, MD, PhD^27* and Alberto Alvarez-Larran^28*

¹Hospital Universitari Mútua Terrassa, Barcelona, Spain
²Hematopathology Section, Pathology Department, Hospital Clínic Barcelona, Barcelona, Spain
³Complexo Hospitalario Universitario de A Coruña, A Coruña, Spain
⁴Hospital Clínico Universitario, Santiago de Compostela, Spain., Santiago, Spain
⁵Hospital del Mar, Barcelona, Spain
⁶Hospital Universitario Virgen de la Arrixaca, Murcia, Spain
⁷UCAM, Murcia, Spain
⁸Hospital Universitario Morales Meseguer. Centro Regional de Hemodonación. Universidad de Murcia. IMIB-Arrixaca, Murcia, Spain
⁹Hospital Universitario 12 de Octubre, Madrid, Spain
¹⁰Hematology Department. Hospital Miguel Servet, Zaragoza, Spain., Zaragoza, ESP
¹¹Hematology Department. Hospital Príncipe de Asturias, Alcalá de Henares, Spain., Alcalá de Henares, Spain
¹²Department of Hematology, Hospital del Mar, Barcelona, Spain
¹³Hematology Department. Hospital Marqués de Valdecilla, Santander, Spain, Santander, Spain
¹⁴Hospital Universitario de Cruces, Barakaldo, Spain
¹⁵Hospital Universitario Doctor Josep Trueta - ICO, Girona, Spain
¹⁶Department of Hematology, Hospital Clínico Universitario-INCLIVA, Valencia, ESP
¹⁷Hospital Son Llatzer, Palma de Mallorca, Spain
¹⁸Hematology Department, Hospital General Universitario de Alicante, Alicante, ESP
¹⁹Hematology Department. Hospital Costa del Sol, Marbella, Spain, Marbella, Spain
²⁰Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain
²¹Hospital Universitario Doctor Negrín, Las Palmas, Spain
²²Hematology Department, Vall d'Hebron University Hospital, University Autònoma of Barcelona (UAB), Barcelona, Spain
²³Hospital de Burgos, BURGOS, ESP
²⁴Hematology, Hospital Universitario Ramón y Cajal, Madrid, Spain
²⁵Hospital Clínic de Barcelona, Barcelona, Spain
²⁶Department of Hemotherapy and Hemostasis, Hospital Clinic, Barcelona, Spain
²⁷Hospital Clínico Universitario-INCLIVA, VALENCIA, Spain
²⁸Hematoloy Department,, Hospital Clínic, IDIBAPS, University of Barcelona, Barcelona, Spain

Francesca Palandri, MD, PhD^1*, Elena Maria Elli, MD^2*, Giulia Benevolo, MD^3*, Alessandra Dedola^4,5*, Roberto Latagliata^6*, Erika Morsia^7*, Mario Tiribelli, MD^8*, Francesco Cavazzini, MD^9*, Alessia Tieghi, MD^10*, Mirko Farina, MD^11*, Alessandra D'Addio, MD^12*, Elisabetta Abruzzese, MD¹³, Fabrizio Cavalca^14*, Rikard Mullai, MD^15*, Antonio Cuneo, MD^16*, Bruno Martino, MD^17*, Florian Heidel, MD¹⁸, Elena Rossi, MD^19*, Massimo Breccia^20*, Valerio De Stefano, MD^19* and Filippo Branzanti, MSc^5,21*

¹IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, Istituto di Ematologia "Seràgnoli", Bologna, Italy
²Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
³Hematology Division I, Department of Molecular Biotechnologies and Health Sciences, University of Turin/University Hospital A.O.U. “Città della Salute e della Scienza”, Turin, Italy
⁴IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, Bologna, Bologna, Italy
⁵Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Università di Bologna, Bologna, Bologna, Italy
⁶Hematology Unit, Ospedale Belcolle, Viterbo, Italy, Rome, ITA
⁷Hematology Unit, Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Ancona, Italy
⁸Division of Hematology and BMT, Department of Medical Area, University of Udine, Udine, Italy
⁹Division of Hematology, Arcispedale Sant'Anna, University of Ferrara, Ferrara, ITA
¹⁰Department of Hematology, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
¹¹Unit of Blood Diseases and Bone Marrow Transplantation, Cell Therapies and Hematology Research Program, Department of Clinical and Experimental Science, University of Brescia, ASST Spedali Civili di Brescia, Brescia, Italy
¹²Division of Hematology, Onco-hematologic Department, AUSL della Romagna, Ravenna, Ravenna, ITA
¹³Division of Hematology, Ospedale S. Eugenio, Roma, Roma, Italy
¹⁴IRCCS San Gerardo dei Tintori, divisione di ematologia e unità trapianto di midollo, Monza, Monza, Italy
¹⁵Division of Hematology and BMT, Department of Medical Area, University of Udine, Udine, Udine, Italy
¹⁶Division of Hematology, University of Ferrara, Ferrara, Ferrara, Italy
¹⁷Division of Hematology, Azienda Ospedaliera 'Bianchi Melacrino Morelli', Reggio Calabria, Italy
¹⁸Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Hannover Medical School (MHH), Hannover, Hannover, Germany
¹⁹Fondazione Policlinico Gemelli IRCCS, Section of Hematology, Catholic University, Rome, Roma, Italy
²⁰Department of Translational and Precision Medicine, Az., Hematology-Sapienza University, Rome, Italy
²¹IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, Bologna, Italy

Shivani Handa, MD^1,2, Yosef Joseph Rene Amel Riazat-Kesh, MD³, Richard J Butterfield^4,5*, Ganesh Sivakumar, MD^6*, Sangeetha Venugopal, MD, MS⁷, Erin McGovern, BA^5,8*, Jonathan Feld, MD¹, Douglas Tremblay, MD¹, Sebastian Elghaity-Beckley^1*, Marina Kremyanskaya, MD, PhD^1,5, John O. Mascarenhas, MD^1,5, Blake Langlais, MS^4,5*, Gina L. Mazza, PhD^4,5*, Daniel I. Nathan, MD¹, Joseph Tripodi, PhD⁹, Vesna Najfeld, PhD^5,10, Amylou C Dueck, PhD^4,5, Raajit Rampal, MD, PhD^5,8, Ronald Hoffman, MD^1,5 and Bridget Kelly Marcellino, MD, PhD^1,5

¹Division of Hematology & Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
²Division of Hematology, The Ohio State University Wexner Medical Center, Columbus, OH
³Weill Cornell Medical Center - NewYork-Presbyterian, New York
⁴Department of Quantitative Health Sciences, Mayo Clinic, Scottsdale, AZ
⁵Myeloproliferative Neoplasms (MPN) Research Consortium, New York, NY
⁶Department of Internal Medicine, Icahn School of Medicine/ Mount Sinai Morningside-West, New York, NY
⁷Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL
⁸Memorial Sloan Kettering Cancer Center, New York, NY
⁹Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, Old Tappan, NJ
¹⁰Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY

Ayalew Tefferi, MD¹, Maymona Abdelmagid, MD^2*, Giuseppe Gaetano Loscocco^3*, Kebede Begna, MD², Aref Al-Kali, MD¹, James M. Foran, MD⁴, Jeanne Palmer, MD⁵, Talha Badar, MD⁶, Mrinal M. Patnaik, MD, MBBS⁷, Kaaren K. Reichard, MD⁸, Rong He, MD⁹, Cinthya Zepeda Mendoza, PhD^2*, Mithun V Shah, M.D., Ph.D.¹, Attilio Orazi, MD^10*, Daniel A. Arber, MD¹¹, Animesh D. Pardanani, MBBS, PhD², Alessandro M. Vannucchi, MD, PhD¹², Devendra Hiwase, MD, MBBS, PhD, FRACP, FRCPA¹³, Naseema Gangat, MBBS¹ and Paola Guglielmelli, MD¹⁴

¹Division of Hematology, Mayo Clinic, Rochester, MN
²Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
³Department of Experimental and Clinical Hematology, Centro di Ricerca e Innovazione Malattie Mieloproliferative (CRIMM), AOU Careggi, University of Florence, Florence, Italy
⁴Division of Hematology & Medical Oncology, Mayo Clinic, Jacksonville, FL
⁵Mayo Clinic - Arizona, Scottsdale, AZ
⁶Department of Hematology/Oncology, Mayo Clinic, Jacksonville, FL
⁷Mayo Clinic, Rochester, MN
⁸Department of Pathology, Mayo Clinic, Rochester, MN
⁹Division of Hematopathology, Mayo Clinic, Rochester, MN
¹⁰Texas Tech University Health Sciences Center, El Paso
¹¹University of Chicago, Chicago, IL
¹²Department of Clinical and Experimental Medicine, University of Florence, Florence, Italy
¹³Royal Adelaide Hospital, Adelaide, SA, Australia
¹⁴Department of Experimental and Clinical Medicine, Centro di Ricerca e Innovazione Malattie Mieloproliferative (CRIMM), AOU Careggi, University of Florence, Florence, Italy

Nico Gagelmann, MD^1*, Barbara Mora^2*, Filippo Branzanti, MSc^3*, Alessandro Maria Vannucchi⁴, Massimo Breccia^5*, Giuseppe Alberto Maria Palumbo^6*, Massimiliano Bonifacio, MD^7*, Erika Morsia^8*, Elena Maria Elli, MD^9*, Mario Tiribelli, MD^10*, Giulia Benevolo, MD^11*, Mirko Farina, MD^12*, Fabrizio Pane¹³, Roberto Massimo Lemoli, MD^14*, Giovanni Caocci, MD¹⁵, Alessia Tieghi, MD^16*, Gianni Binotto, MD^17*, Francesco Cavazzini, MD^18*, Bruno Martino, MD^19*, Alessandro Isidori, MD, PhD²⁰, Margherita Maffioli^21*, Elisa Rumi, MD^22*, Tiziano Barbui, MD^23*, Francisco Cervantes^24*, Matteo Giovanni Della Porta, MD^25*, Andrew T. Kuykendall, MD²⁶, Marianna Caramella, MD^27*, Alessandra Iurlo, MD, PhD^28*, Valerio De Stefano, MD^29*, Jean-Jacques Kiladjian, MD, PhD³⁰, David Ross, MD³¹, Jason Gotlib, MD, MS³², Timothy Devos, MD, PhD^33*, Marco Ruggeri, MD^34*, Richard T. Silver, MD³⁵, Rachel B. Salit, MD³⁶, Thomas Schroeder^37*, Carmelo Gurnari, MD, PhD³⁸, Simona Pagliuca, MD, PhD³⁹, Christina Rautenberg^40*, Marie Robin, MD^41*, Marie-Thérèse Rubio, MD, PhD^42*, Jaroslaw Maciejewski⁴³, Alessandro Rambaldi⁴⁴, Maria Chiara Finazzi^44*, Andrea Bacigalupo, MD⁴⁵, Patrizia Chiusolo, MD, PhD^45*, Hans Christian Reinhardt, MD⁴⁶, Bart L. Scott, MD⁴⁷, Nicolaus Kröger, MD Prof^48*, Francesco Passamonti, MD^49* and Francesca Palandri, MD, PhD^50*

¹Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
²Fondazione I.R.C.C.S. Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
³IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia “Seràgnoli”, Bologna, Italy
⁴Department of Experimental and Clinical Medicine, Centro di Ricerca e Innovazione Malattie Mieloproliferative (CRIMM), AOU Careggi, University of Florence, Firenze, Tuscany, Italy
⁵Department of Translational and Precision Medicine, Az., Hematology-Sapienza University, Rome, Italy
⁶Universtiy Hospital Catania, Catania, ITA
⁷Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Italy
⁸Hematology Unit, Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Ancona, Italy
⁹Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
¹⁰Division of Hematology and BMT, Department of Medical Area, University of Udine, Udine, Italy
¹¹Hematology Division I, Department of Molecular Biotechnologies and Health Sciences, University of Turin/University Hospital A.O.U. “Città della Salute e della Scienza”, Turin, Italy
¹²Unit of Blood Diseases and Bone Marrow Transplantation, Cell Therapies and Hematology Research Program, Department of Clinical and Experimental Science, University of Brescia, ASST Spedali Civili di Brescia, University of Brescia, ASST Spedali Civili, Brescia, Italy
¹³Division of Hematology and SCT Unit, Federico II University, Naples, Naples, Italy
¹⁴Clinic of Hematology, University of Genoa, IRCCS Ospedale Policlinico San Martino, Genoa, Genoa, Italy
¹⁵University of Cagliari, Monserrato, Italy
¹⁶Department of Hematology, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Reggio Emilia, ITA
¹⁷Department of Medicine, Hematology and Clinical Immunology, University of Padua, Padua, Italy
¹⁸Università degli Studi di Ferrara, Ferrara, Italy
¹⁹Division of Hematology, Azienda Ospedaliera 'Bianchi Melacrino Morelli', Reggio Calabria, Italy
²⁰AST Pesaro e Urbino, Hematology and Stem Cell Transplant Center, Pesaro, PU, Italy
²¹ASST Dei Sette Laghi, Ospedale Di Circolo, Varese, Varese, ITA
²²Department of Molecular Medicine, University of Pavia, Pavia, Italy
²³FROM Research Foundation ASST Papa Giovanni XXIII Bergamo, Bergamo, ITA
²⁴Hospital Clinic, Barcelona, Spain
²⁵IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
²⁶Department of Malignant Hematology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
²⁷Divisione Ematologia, Ospedale Niguarda, Milan, Italy
²⁸Hematology Division, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy
²⁹Institute of Hematology, Catholic University School of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Roma, Italy
³⁰Hopital Saint-Louis, Paris, France
³¹Royal Adelaide Hospital, Adelaide, Australia
³²Stanford Cancer Institute/Stanford University School of Medicine, Stanford, CA
³³University Hospitals Leuven (UZ Leuven), Leuven, BEL
³⁴San Bortolo Hospital, Vicenza, ITA
³⁵Richard T. Silver, MD Myeloproliferative Neoplasms Center, Weill Cornell Medicine, New York, NY
³⁶Fred Hutchinson Cancer Research Center, Seattle, WA
³⁷Dept. of Hematology and Stem Cell Transplantation West German Cancer Centre University Hospital Essen Essen, Germany, Duisburg, Germany
³⁸Cleveland Clinic Foundation, Cleveland, OH
³⁹Department of Hematology, Nancy University Hospital, Vandœuvre-lès-Nancy, France, France
⁴⁰Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
⁴¹Hopital Saint Louis, APHP, Paris, France
⁴²BMT Unit, Nancy, France
⁴³Taussig Cancer Center, Cleveland, OH
⁴⁴Hematology and Bone Marrow Transplant Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
⁴⁵UOC Ematologia e Trapianto Cellule Staminali Emopoietiche, Fondazione Policlinico Universitario A. Gemelli IRCCS Roma, Rome, Italy
⁴⁶Department of Hematology and Stem Cell Transplantation, West German Cancer Center and German Cancer consortium (DKTK partner site Essen), University Hospital Essen, University of Duisburg-Essen, Essen, Germany
⁴⁷Fred Hutchinson Cancer Center, Seattle, WA
⁴⁸Department of Stem Cell Transplantation, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
⁴⁹Dipartimento di Oncologia ed Ematologia, Università degli Studi di Milano, Policlinico di Milano, Ospedale Maggiore, Fondazione I.R.C.C.S. Ca Granda, Milano, Italy
⁵⁰IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, Istituto di Ematologia "Seràgnoli", Bologna, Italy

Orly Leiva, MD^1,2, Steven Soo, M.D.^3*, Nathaniel Smilowitz^4*, Harmony Reynolds^4*, Binita Shah^4*, Samuel Bernard^4*, Michelle Hyunju Lee, MD⁵, Chi-Joan How, MD⁶ and Gabriela S. Hobbs, MD⁷

¹University of Chicago, New York City, NY
²New York University Langone Health, New York City, NY
³New York University Long Island School of Medicine, Mineola, NY
⁴New York University Grossman School of Medicine, New York City, NY
⁵Department of Medical Oncology, Massachusetts General Hospital, Winchester, MA
⁶Division of Hematology, Department of Medicine, Brigham and Women's Hospital, Boston, MA
⁷Division of Hematology/Oncology, Massachusetts General Hospital, Boston, MA