Pietro Merli, MD^1*, Mattia Algeri, MD^2*, Federica Galaverna, MD^3*, Francesco Quagliarella^4*, Valentina Bertaina^5*, Elia Girolami, MSc^6*, Antonella Meschini, MD^7*, Giovanna Del Principe, MD^8*, Simone Biagini, MSc^1*, Raffaella Sborgia^3*, Barbarella Lucarelli^9*, Daria Pagliara, MD, PhD^3*, Marialuigia Catanoso, MD^3*, Chiara Rosignoli^10*, Matilde Cossutta^3*, Francesca Lanzaro^4*, Costanza Canino^4*, Maria Giuseppina Cefalo, MD^1*, Luisa Strocchio, MD^11*, Emilia Boccieri, MD^3*, Marco Becilli, MD^3*, Roberto Carta, MD^3*, Francesca Del Bufalo, MD^3*, Giuseppina Li Pira, PhD^6* and Franco Locatelli, Prof., MD, PhD^3,12

¹Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
²Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Lazio, Italy
³Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
⁴Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, Bambino Gesù Children Hospital (IRCCS), Rome, Italy
⁵Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, RM, Italy
⁶Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Childrens' Hospital, Rome, Italy
⁷Immunohematology and Transfusion Medicine Unit, Department of Laboratories, IRCCS Bambino Gesù Childrens' Hospital, Rome, Italy
⁸Transfusion Unit, Department of Laboratories, IRCCS Bambino Gesù Children’s Hospital, Rome, Italy
⁹Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children Hospital, Rome, ITA
¹⁰Bambino Gesù Children Hospital (IRCCS), Rome, Italy
¹¹Department of Pediatric Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children Hospital, Rome, Italy
¹²Catholic University of the Sacred Heart, Rome, Italy

Akshay Sharma, MBBS¹, Jacques-Emmanuel Galimard, PhD^2*, Angharad Pryce^3*, Senthil Bhoopalan, MBBS, PhD^4*, Arnaud Dalissier, PhD^5*, Jean-Hugues Dalle, MD, PhD^6*, Franco Locatelli, MD⁷, Charlotte Jubert, MD^8*, Oana Mirci-Danicar, MD^9*, Vassiliki Kitra-Roussou, MD^10*, Yves Bertrand, MD, PhD^11*, Franca Fagioli, MD^12*, Fanny Rialland, MD^13*, Alessandra Biffi^14*, Robert F Wynn, MRCP, MD, FRCPath¹⁵, Gerard Michel, MD^16*, Francesco Paolo P Tambaro, MD, PhD¹⁷, Ali Abdallah Ahmari, MD^18*, Abdelghani Tbakhi, MD^19*, Caroline Furness^20*, Miguel Ángel Díaz Pérez, MD^21*, Petr Sedlacek, MD^22*, Ivana Bodova, MD^23*, Maura Faraci, MD^24*, Kanchan Rao, MD^25*, Marie Thérèse Rubio, MD, PhD^26*, Brenda Gibson^27*, Neel S. Bhatt, MBBS, MPH^28* and Selim Corbacioglu, MD²⁹

¹Bone Marrow Transplantation and Cellular Therapy, St. Jude Children’s Research Hospital, Memphis, TN
²Hôpital Saint-Antoine, EBMT Statistical Unit, Paris, France
³Anthony Nolan Research Institute, Imperial College Healthcare NHS Trust, London, United Kingdom
⁴Department of Hematology, St Jude Children's Research Hospital, Memphis, TN
⁵Hôpital Saint-Antoine, EBMT Paris Study Unit, Paris, France
⁶Pediatric Hematology and Immunology Department, Hôpital Robert Debré and Université de Paris, Paris, France
⁷Department of Pediatric Hematology and Oncology, Ospedale Pediatrico Bambino Gesù, Catholic University of the Sacred Heart, Rome, Italy
⁸CHU Bordeaux Groupe, Hôpital des Enfants, Bordeaux, France
⁹Bristol Royal Hospital for Children, Bristol, United Kingdom
¹⁰BMT Unit, St Sophia Children`s Hospital Oncology Centre, Athens, Greece
<sup>11</sup>Unité de coordination interne et externe, Institut d`Hematologie et d`Oncologie Pediatrique, Lyon, France
<sup>12</sup>Onco-Ematologia Pediatrica, Centro Trapianti Cellule Staminali, Ospedale Infantile Regina Margherita, Piazza Polon, Italy
<sup>13</sup>Service Onco-Hématologie Pédiatrique, Hôpital Mère-Enfant, Nantes University Hospital, Nantes, France
<sup>14</sup>Women's and children's health department, onco-hematology lab and clinic, University-Hospital of Padova, Padova, AL, Italy
<sup>15</sup>Department of Paediatric Haematology, Bone Marrow Unit, Royal Manchester Children's Hospital, Manchester, United Kingdom
<sup>16</sup>Département Hématologie Oncologie Pédiatrique, Hopital de la Timone Enfants, Marseille, France
<sup>17</sup>UOC TCSE e Terapie Cellulari, AORN Santobono pausilipon, NAPLES, Italy
<sup>18</sup>King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia
<sup>19</sup>King Hussein Cancer Centre, Amman, Jordan
<sup>20</sup>Royal Marsden Hospital, London, United Kingdom
<sup>21</sup>Department of Hematology, Hospital Niño Jesús, Madrid, Spain
<sup>22</sup>Department of Paediatric Haematology and Oncology, University Hospital Motol, Prague, Czech Republic
<sup>23</sup>BMT Unit, II Children`s Clinic, University Teaching Hospital, Bratislava, Slovakia
²⁴Unità di Trapianto di Cellule Staminali Emopoietiche - Department of Hematology, Oncology and Hematopoietic Stem Cell Transplantion, IRCSS, Istituto Giannina Gaslini, Genova, Italy
²⁵Department of Blood and Marrow Transplantation, Great Ormond Street Hospital for Children, London, United Kingdom
²⁶Hopital d`Enfants, Nancy, France
²⁷The Royal Hospital for Children, Glasgow, United Kingdom
²⁸Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
²⁹Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University of Regensburg, Regensburg, Germany

Chitra Hosing, MD¹, Eric McLaughlin, MS^2*, Zachary Braunstein, MD^3*, Benigno C Valdez, PhD¹, Lai Wei, PhD^2*, Uday R Popat, MD¹, Borje S Andersson, MD, PhD⁴, Sumithira Vasu, MBBS⁵, Karilyn T. Larkin, MD⁶, Samantha Jaglowski, MD, MPH⁷, Sam Penza, MD⁸, Ayman Saad, MD⁹, Hannah Choe, MD⁵, Sarah A Wall, MD, MPH¹⁰, Alex Cash^11*, Robin Nakkula^12*, Richard E Champlin, MD¹, Marcos J.G. de Lima, MD¹³, Dean Anthony Lee, MD, PhD¹⁴ and Jonathan E Brammer, MD¹⁵

¹Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
²Center for Biostatistics, The Ohio State University, Columbus, OH
³Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH
⁴Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
⁵Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
⁶Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH
⁷The Ohio State University, Columbus, OH
⁸Hematology, The Ohio State University, Columbus, OH
⁹Division of Hematology, The Ohio State University Comprehensive Cancer Center, Columbus, OH
¹⁰Division of Hematology, The Ohio State University, Columbus, OH
¹¹Nationwide Children's Hospital, Columbus
¹²Center for Childhood Cancer and Blood Diseases, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH
¹³Blood and Marrow and Cellular Therapy Program, Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH
¹⁴Center for Childhood Cancer, Abigail Wexner Research Institute, The Research Institute At Nationwide Children’S Hospital, Columbus, OH
¹⁵Division of Hematology, Department of Internal Medicine, The Ohio State University James Comprehensive Cancer Center, Columbus, OH

Leland Metheny, MD¹, Ronald M. Sobecks, MD², Christina Cho, MD³, Jiasheng Wang, MD⁴, Lisa Ciarrone^5*, Paolo F. Caimi, MD⁶, Folashade Otegbeye, MBBChir, MPH⁷, Brenda W. Cooper, MD⁸, Molly Gallogly, MD, PhD⁹, Ehsan Malek, MD¹⁰, Aaron T. Gerds, MD, MS¹¹, Betty K. Hamilton, MD¹², Sergio A Giralt, MD¹³, Miguel-Angel Perales, MD¹⁴ and Marcos J.G. de Lima, MD¹⁵

¹Adult Hematologic Malignancies & Stem Cell Transplant Section, University Hospitals Seidman Cancer Center, Shaker Heights, OH
²Department of Hematology and Medical Oncology, Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH
³Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
⁴Department of Hematology and Oncology, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH
⁵University Hospitals of Cleveland, Siedman Cancer Center, Cleveland, OH
⁶Blood and Marrow Transplant Program, Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH
⁷Fred Hutchinson Cancer Research Center, SEATTLE, OH
⁸Adult Hematologic Malignancies & Stem Cell Transplant Section, Seidman Cancer Center, University Hospitals Cleveland Medical Center, Cleveland, OH
⁹University Hospitals Seidman Cancer Center, Cleveland, OH
¹⁰Adult Hematologic Malignancies & Stem Cell Transplant Section, University Hospitals Seidman Cancer Center, Cleveland, OH
¹¹Department of Hematology and Medical Oncology,, Cleveland Clinic Taussig Cancer Institute, Cleveland, OH
¹²Cleveland Clinic Foundation, Cleveland, OH
¹³Adult Bone Marrow Transplantation Service, Memorial Sloan Kettering Cancer Center, New York, NY
¹⁴Adult Bone Marrow Transplant Service, Cellular Therapy Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
¹⁵Blood and Marrow and Cellular Therapy Program, Department of Internal Medicine, Division of Hematology, The Ohio State University, Columbus, OH

Amandeep Salhotra, MD¹, Nelli Bejanyan, MD², Dongyun Yang, PhD^3*, Sally Mokhtari, PhD⁴, Monzr M. Al Malki, MD¹, Karamjeet S. Sandhu, MD¹, Rawan Faramand, MD⁵, Ibrahim Aldoss, MD¹, Andrew S. Artz, MD, MS⁶, Ahmed Aribi, MD¹, Hany Elmariah, MD^7*, Firoozeh Sahebi, MD⁸, Joshua Mansour, MD⁸, Brian J Ball, MD⁹, Vaibhav Agrawal, MD¹, Ling Li, PhD¹, Vinod A. Pullarkat, MD^1*, Stephen J Forman, MD¹, Guido Marcucci, MD¹, Ryotaro Nakamura, MD^10* and Anthony S. Stein, MD¹

¹Department of Hematology/HCT, City of Hope National Medical Center, Duarte, CA
²Department of Blood and Marrow Transplantation and Cellular Immunotherapy, H. Lee Moffitt Cancer Center, Tampa, FL
³Department of Computational and Quantitative Medicine, City of Hope National Medical Center, Duarte, CA
⁴Department of Clinical Translational Program Development, City of Hope National Medical Center, Duarte, CA
⁵Department of Blood and Marrow Transplant and Cellular Immunotherapy, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL
⁶Department of Hematology/HCT, City of Hope, Duarte, CA
⁷Department of Blood and Marrow Transplantation and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, FL
⁸Department of Hematology/HCT, Southern California Kaiser Permanente, Los Angeles, CA
⁹Department of Hematology/HCT, City of Hope National Medical Center, Pasadena, CA
¹⁰Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA

Aobei Zhang^1*, Haixia Fu^2*, Yuanyuan Zhang^3*, Kaiyan Liu, MD, PhD⁴, Yu Wang^5*, Xiao-Dong Mo^6*, Wei Han^5*, Tingting Han^3*, Huan Chen^3*, Yao Chen^7*, Yuqian Sun, MD^8*, Xiaojun Huang^5* and Xiaohui Zhang^9*

¹Peking University People's Hospital, Beijing, China
²Collaborative Innovation Centre of Haematology, Peking University, Beijing, China
³Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of HSCT, Peking University, Beijing, China
⁴Peking University People's Hospital, Peking University Institute of Haematology, Beijing, China., Beijing, China
⁵Peking University People’s Hospital, Beijing, China
⁶Chinese Academy of Medical Sciences, Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Beijing, China
⁷Peking University People’s Hospital, Peking University Institute of Hematology, Beijing, China
⁸Peking University Insititute of Hematology, Beijing, CHN
⁹Peking University people hospital, Beijing, China