Andrew Artz, MD, MS¹, Brent R. Logan, PhD^2*, Wael Saber, MD, MS³, Nancy Geller, PhD^4*, Anna Bellach, Ph.D.^4*, Jianqun Kou, MS^5*, William Wood, MD, MPH⁶, John M. McCarty, MD⁷, Thomas G. Knight, MD⁸, Lyndsey Runaas^9*, Laura Johnston¹⁰, Jeremy Walston^11*, Ryotaro Nakamura, MD¹², Tammy Schuler^13*, Asmita Mishra, MD, MBA¹⁴, Joseph Uberti, MD, PhD¹⁵, Parastoo B. Dahi, MD^16*, Jennifer N. Saultz, DO¹⁷, Shannon R McCurdy, MD¹⁸, Lawrence Morris, MD¹⁹, Philip Imus, MD²⁰, William J. Hogan, MD²¹, Kalyan Nadiminti, MBBS²², Vijaya Raj Bhatt, MD²³, Deborah Mattila, BA^24*, Bailey Protz^25*, Steven M. Devine, MD²⁶, Mary M. Horowitz, MD²⁷ and Mohamed Sorror, MD, MSc²⁸

¹City of Hope, Duarte, CA
²Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI
³Medical College of Wisconsin, Milwaukee, WI
⁴National Heart, Lung, and Blood Institute, Bethesda, MD
⁵CIBMTR® (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
⁶Division of Hematology, Department of Medicine, University of North Carolina At Chapel Hill Hospital, Chapel Hill, NC
⁷Virginia Commonwealth University Medical Center, Richmond, VA
⁸Department of Hematologic Oncology and Blood Disorders, Atrium Health Levine Cancer Institute, Charlotte, NC
⁹Froedtert Hospital, Milwaukee, WI
¹⁰Stanford University, Stanford, CA
¹¹Johns Hopkins University, Baltimore, MD
¹²Hematologic Malignancies and Stem Cell Transplantation Institute, City of Hope National Comprehensive Cancer Center, Duarte, CA
¹³Fred Hutchinson Cancer Research Center, Seattle, WA
¹⁴Moffitt Cancer Center, Tampa, FL
¹⁵Karmanos Cancer Institute/Wayne State University, Detroit, MI
¹⁶Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
¹⁷Oregon Health & Science University, Portland, OR
¹⁸Division of Hematology/Oncology, Department of Medicine, University of Pennsylvania, Philadelphia, PA
¹⁹Blood and Marrow Transplant Program, Northside Hospital Cancer Institute, Atlanta, GA
²⁰Johns Hopkins, Baltimore, MD
²¹Division of Hematology, Mayo Clinic, Rochester, MN
²²Department of Medicine Division of Hematology, Medical Oncology and Palliative Care, University of Wisconsin–Madison, Madison, WI
²³The Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE
²⁴National Marrow Donor Program/Be The Match, Center for International Blood and Marrow Transplant Research, Minneapolis, MN
²⁵National Marrow Donor Program/Be The Match, Center for International Blood and Marrow Transplant Research, Minnneapolis, MN
²⁶Be the Match Foundation, Minneapolis, MN
²⁷Center for International Blood and Marrow Transplant Research, Milwaukee, WI
²⁸Fred Hutchinson Cancer Center, Seattle, WA

Anita Lawitschka, anita.lawitschka@stanna.at^1,2*, Jean-Hugues Dalle, MD, PhD^3*, Ulrike Pötschger, PhD^2*, Helga Arnardottir^2*, Petr Sedlacek, MD, PhD^4*, Jochen Büchner, MD, PhD^5*, Marianne Ifversen, MD^6*, Peter Svec, MD, PhD^7*, Jerry Stein, MD^8*, Tayfun Güngör, MD, PhD^9*, Jacek Toporski, MD, PhD^10*, Cristina Díaz De Heredia, MD^11*, Marc Bierings, MD¹², Roland Meisel, MD^13*, Marc Ansari, MD, PhD¹⁴, Adriana Balduzzi, MD^15,16, Franco Locatelli, MD, PhD^17,18, Christina Peters, MD^2,19* and Peter Bader, MD, PhD²⁰

¹St. Anna Children's Hospital, Vienna, Austria
²Children’s Cancer Research Institute, Vienna, Austria
³Pediatric Hematology and Immunology Department, GHU APHP Nord - Université Paris Cité, Robert Debré Hospital, Paris, France
⁴Department of Pediatric Hematology and Oncology, Motol University Hospital, Prague, Czech Republic
⁵Oslo University Hospital, Oslo, Norway
⁶Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
⁷Bone Marrow Transplantation Unit, Department of Pediatric Hematology and Oncology, National Institute of Children's Diseases, Comenius University, Bratislava, Slovakia
⁸Schneider Children's Medical Center of Israel and Sackler Faculty of Medicine Tel Aviv University, Petach Tikva, Israel
⁹University children’s Hospital, Zürich, Zürich, Switzerland
¹⁰Department Cell Therapy and Allogeneic Stem Cell Transplant (CAST), Karolinska University Hospital, Stockholm, Sweden
¹¹Hospital Universitari Vall d’Hebron, Vall d’Hebron Institut de Recerca, Barcelona, Spain
¹²Princess Máxima Center, University Hospital for Children, Utrecht, Netherlands
¹³Division of Pediatric Stem Cell Therapy, Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
¹⁴Geneva University Hospital, Geneva, Switzerland
¹⁵Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy
¹⁶School of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
¹⁷Catholic University of the Sacred Heart, Rome, Italy
¹⁸Department of Pediatric Hematology and Oncology, Sapienza University of Rome, IRCCS Ospedale Pediatrico Bambino Gesù, Roma, Italy
¹⁹Department of Pediatric Hematology and Oncology, St. Anna Children's Hospital, Vienna, Austria
²⁰Department of Pediatrics, Division for Stem Cell Transplantation, Immunology and Intensive Care, Goethe University Frankfurt, University Hospital, Frankfurt, Germany

Madhavi Lakkaraja, MD, MPH^1,2, Audrey Mauguen, PhD^3*, Kinga K Hosszu, PhD^4*, Devin McAvoy, BS^4*, Valerie Stewart, MSc, PhD^5*, Gabrielle Schmidt, MPH^5*, John Levine, MD⁶, Miguel-Angel Perales, MD^7,8, Sergio A. Giralt, MD, FACP^7,8, K. Scott Baker, MD, MS^1,2 and Jaap Jan Boelens, MD^9,10

¹Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA
²Department of Pediatrics, Division of Hematology/Oncology, University of Washington School of Medicine, Seattle, WA
³Epidemiology-Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
⁴Department of Pediatrics and Immune Discovery & Modeling Service, Memorial Sloan Kettering Cancer Center, New York, NY
⁵Center for International Blood and Marrow Transplant Research (CIBMTR), National Marrow Donor Program/Be The Match, Minneapolis, MN
⁶Icahn School of Medicine at Mount Sinai, New York, NY
⁷Department of Medicine, Weill Cornell Medical College, New York, NY
⁸Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
⁹Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY
¹⁰Department of Pediatrics, Weill Cornell Medicine, New York, NY

Michael Grimley, MD¹, Gabriela Maron, MD, MSc^2*, Carlos A Gomez, MD^3*, Vinod K. Prasad, MBBS, MD^4*, Jasmeen Dara, MD, MS^5*, Genovefa A Papanicolaou, MD^6*, Koji Fukushima, MD, PhD^7*, Robert F. Wynn, MRCP, MD, FRCPath^8* and Michael Boeckh, MD^9*

¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH
²St. Jude Children's Research Hospital, Memphis, TN
³University of Nebraska Medical Center, Omaha, NE
⁴PBMT Program, Durham, NC
⁵University of California, San Francisco, San Francisco, CA
⁶Memorial Sloan Kettering Cancer Center, New York, NY
⁷SymBio Pharmaceuticals Limited, Tokyo, Japan
⁸Royal Manchester Children's Hospital, Manchester, GBR
⁹Fred Hutchinson Cancer Center, Seattle, WA

Eric Davis, MPH, CHTC^1,2*, Elise Feuer^3*, Candice Rapoport^2*, Stephanie Lobaugh^4*, Sean M. Devlin, PhD^5*, Anne Archer^1,2*, Stephanie Chinapen^2*, Jacob Federman^6*, Amanda Kelly^2*, Elizabeth Klein^1*, Melissa Nhaissi^6*, Deborah Wells^6*, Juliet N Barker, MBBS^6,7, Esperanza B. Papadopoulos, MD^6,8, Andromachi Scaradavou, MD^1,9, Jaap Jan Boelens, MD^1,9, Miguel-Angel Perales, MD^6,8, Elena Maryamchik^10* and Roni Tamari, MD^6,8

¹Pediatric Transplantation and Cellular Therapies Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY
²Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York
³Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
⁴Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
⁵Department of Biostatistics and Epidemiology, Memorial Sloan Kettering Cancer Center, New York, NY
⁶Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
⁷Department of Medicine, Weill Cornell Medicine, New York
⁸Department of Medicine, Weill Cornell Medicine, New York, NY
⁹Department of Pediatrics, Weill Cornell Medicine, New York, NY
¹⁰Transfusion Medicine and Cell Therapy, Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY

Anthony Sabulski, MD¹, Sonata Jodele, MD¹, Eleanor Cook, MBBS^1*, Kasiani Myers, MD², Adam C. Lane, PhD^3*, Samppa Ryhanen Sr., MD, PhD⁴, Maria Pia Cefalo^5*, Francesco Quagliarella, MD^5,6*, Stella M Davies, MBBS, PhD, MRCP¹, Ashley Teusink-Cross^1*, Paibel Aguayo-Hiraldo, MD⁷, Jessie L. Alexander, MD⁸, Paul Szabolcs, MD⁸, Mira Kohorst, MD⁹, Tiziana Corsetti^5*, Franco Locatelli, MD, PhD⁵ and Pietro Merli, MD^5,10*

¹Cincinnati Children's Hospital Medical Center, Cincinnati, OH
²Cincinnati Children's Hospital, Cincinnati, OH
³Division of Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
⁴Hospital For Children and Adolescent, Helsinki University Central Hospital, Helsinki, FIN
⁵Bambino Gesù Children's Hospital, Rome, Italy
⁶Department of Haematology-Oncology and Cell and Gene Therapy, Bambino Gesù Children Hospital, Rome, Italy
⁷Children's Hospital Los Angeles, Los Angeles, CA
⁸Children's Hospital of Pittsburgh, Pittsburgh, PA
⁹Mayo Clinic, Rochester, MN
¹⁰Hematology/Oncology, Cell and Gene Therapy, Bambino Gesù Children Hospital (IRCCS), Rome, Italy