Mary Eapen, MBBS, MS¹, Joseph Antin, MD^2*, Jakub Tolar, MD, PhD³, Sally Arai, MD⁴, Mitchell Horwitz, MD⁵, Jainqun Kou, MPH^6*, Eric Leifere, PhD^7*, John M. McCarty, MD⁸, Ryotaro Nakamura, MD⁹, Michael A. Pulsipher, MD^10*, Mary M. Horowitz, MD⁶ and H Joachim Deeg, MD^11*

¹Department of Medicine, The Medical College of Wisconsin Inc, Milwaukee, WI
²Dana-Farber Cancer Institute, Boston, MA
³University of Minnesota, Minneapolis, MN
⁴Stanford University Medical Center, Palo Alto, CA
⁵Duke University Medical Center, Durham, NC
⁶Center for International Blood and Marrow Transplant Research, Milwaukee, WI
⁷National Heart Lung and Blood Institute, Bethesda, MD
⁸Virginia Commonwealth University Medical Center, Richmond, VA
⁹Hematologic Malignancies and Stem Cell Transplantation Institute, City of Hope National Comprehensive Cancer Center, Duarte, CA
¹⁰University of Utah School of Medicine, Salt Lake City, UT
¹¹Fred Hutchinson Cancer Center, Seattle, WA

Rima M. Saliba, PhD^1*, Stephanie J. Lee², Paul A Carpenter, MD^3,4, Catherine J. Lee, MD³, Geoffrey R Hill, MD⁵, Richard E. Champlin, MD¹, Katy Rezvani, MD⁶, Elizabeth J. Shpall, MD¹ and Rohtesh S. Mehta, MD⁷

¹Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
²Fred Hutchinson Cancer Center, Seattle, WA
³Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
⁴Division of Pediatric Hematology, Oncology, Bone Marrow Transplant & Cellular Therapy, Seattle Children's Hospital, Seattle, WA
⁵Translational Science and Therapeutics Division, Fred Hutchinson Cancer Center, Seattle, WA
⁶Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas M D Anderson Cancer Center, Houston, TX
⁷Clinical Research Division, Fred Hutchinson Cancer Center, Houston, TX

Arnon Nagler, MD¹, Maud Ngoya^2*, Jacques-Emmanuel Galimard^3*, Myriam Labopin^4*, Igor Wolfgang Blau, MD, PhD^5*, Nicolaus Kröger, MD^6*, Tobias Gedde-Dahl, MD^7*, Thomas Schroeder^8*, David Burns, MD, PhD^9*, Urpu Salmenniemi^10*, Alessandro Rambaldi, M.D.¹¹, Goda Choi^12*, Regis Peffault De Latour^13*, Jan Vydra, MD^14*, Henrik Sengeloev^15*, Matthias Eder^16*, Stephan Mielke, MD¹⁷, Edouard Forcade, MD, PhD^18*, Sergey Bondarenko, PhD, MD^19*, Fabio Ciceri, MD^20* and Mohamad Mohty, MD, PhD^21,22

¹Division of Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel Hashomer, Israel
²European Society for Blood and Marrow Transplantation, Paris, France
³Statistic and Statistic and Epidemiologic Research Center Sorbonne Paris Cit, Paris, FRA
⁴EBMT Statistical Unit, Sorbonne University, Saint-Antoine Hospital, AP-HP, INSERM UMRs 938, Paris, France
⁵Medizinische Klinik m. S. Hämatologie, Onkologie und Tumorimmunologie, Berlin, Germany
⁶University Hospital Eppendorf, Bone Marrow Transplantation Centre, Hamburg, Germany
⁷Oslo University Hospital, Oslo, NOR
⁸Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
⁹University Hospital Birmingham NHSTrust, Birmingham, United Kingdom
¹⁰Dept of Hematology, Helsinki University Hospital Comprehensive Cancer Center and University of Helsinki, Helsinki, Finland
¹¹Department of Hematology, ASST Papa Giovanni XXIII, Bergamo, ITA
¹²University Medical Center Groningen (UMCG), Groningen, Netherlands
¹³Hôpital Saint-Louis,, Paris, France
¹⁴Institute of Hematology and Blood Transfusion, Prague 10, CZE
¹⁵Rigshospitalet, Copenhagen, Denmark
¹⁶Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
¹⁷Department of Cellular Therapy and Allogeneic Stem Cell Transplantation, Karolinska Institute & University Hospital, Stockholm, Stockholms Laen, Sweden
¹⁸Service d'Hématologie Clinique et Thérapie Cellulaire, CHU Bordeaux, F-33000, Bordeaux, France
¹⁹RM Gorbacheva Research Institute, Pavlov University, Saint-Petersburg, RUS
²⁰IRCCS Ospedale San Raffaele, Vita-Salute San Raffaele University, Milan, Italy
²¹Saint-Antoine Hospital, Sorbonne University, Paris, France
²²Hôpital Saint Antoine, Paris, FRA

Sitong Chen, MPH^1*, Alysia Bosworth^1*, Liezl Atencio^1*, MHD Monzr Al Malki, MD¹, Stephen J. Forman, MD, FACP², Ryotaro Nakamura, MD³, Saro Armenian, DO, MPH¹ and F. Lennie Wong, PhD⁴

¹City of Hope National Medical Center, Duarte, CA
²Department of Hematology and Hematopoietic Cell Transplantation, Gehr Family Center for Leukemia Research, City of Hope National Medical Center, Duarte, CA
³Cellular Immunotherapy Center, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute of City of Hope, Duarte, CA
⁴City of Hope, Duarte, CA

Zhihui Li^1*, Qinlong Zheng, MD^2*, Keyan Yang^2*, Teng Xu^3*, Lei Wang^1*, Xianxuan Wang^1*, Xiaopei Wen^1*, Yanzhi Song^1*, Yongqiang Zhao^1* and Tong Wu, MD⁴

¹Department of Bone Marrow Transplantation, Beijing Gaobo Boren Hospital, Beijing, China
²Department of Medical Laboratory, Beijing Gaobo Boren Hospital, Beijing, China
³Department of Data Management, Beijing Gaobo Boren Hospital, Beijing, China
⁴Department of Bone Marrow Transplantation, Beijing Gobroad Boren Hospital, Beijing, China

Mazin Mohamed Abdulsalam^1,2,3,4*, Bader Alahmari, MD^2,5,6*, Ahmed S. Alaskar, MD, FRCPC^1,2,3,4*, Ayman Alhejazi^1,4,7,8*, Hind Salama, MD^2,5,9*, Abdulrahman Al Raizah, MD^2,5,9, Abdullah Alsaleh, MD^1,2,3*, Ayman Ibrahim, MD^5*, Mohammed Bakkar, MD^5*, Ayel Yahya, MD^5*, Abdul Rauf Ghori, MD^5*, Zied Aljubour^1*, Rawan Almohammadi^1*, Tahani Alanazi^1*, Rasha Ahmed^1*, Amani Alharbi^1*, Inaam Shehabeddine^1*, Maybelle Ballili^1*, Husam Mazin Alsadi, MD^5* and Mohsen Alzahrani, MD^2,4,5,9*

¹King Abdulaziz Medical City, Ministry of National Guard – Health Affairs, Riyadh, Saudi Arabia
²King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
³King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
⁴Saudi Scientific Society of Blood and Marrow Transplantation (SSBMT), Riyadh, Saudi Arabia
⁵Divison of Hematology & HSCT, Departement of Oncology, King Abdulaziz Medical City, Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
⁶King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
⁷king Abdulah international medical research center KAIMRC, Riyadh, Saudi Arabia
⁸oncology department, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
⁹College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia