Joseph Driscoll^1*, Sarah H. O'Brien, MD, MSc², Jane W. Newburger^3*, Lesley G. Mitchell^4*, Susanne Holzhauer^5*, Sanjay Ahuja, MD⁶, Agustin Rubio^7*, Puneet Gaitonde^8*, Anna Robertson^1*, Martin Polinsky^9*, Urszula Masiukiewicz^1* and Leonardo R. Brandao, MD, MSc¹⁰

¹Pfizer Inc., New York, NY
²Department of Pediatrics, Ohio State University, Columbus, OH
³Department of Cardiology, Boston Children’s Hospital, Boston, MA
⁴Department of Pediatrics, Division of Pediatric Hematology/Oncology, Stollery Children’s Hospital, University of Alberta, Edmonton, AB, Canada
⁵Department of Pediatric Hematology and Oncology, University of Medicine Berlin, Berlin, Germany
⁶Rainbow Babies and Children's Hospital, Cleveland, OH
⁷Seattle Children's Hospital, Seattle, WA
⁸Pfizer Inc., Cambridge, MA
⁹Bristol Myers Squibb, Lawrenceville, NJ
¹⁰Division of Haematology/Oncology, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada

Nikhil Vallabhaneni, DO^1*, Marisol Betensky, MD, MPH^2,3, Amy Stillings, BS, CCRP^4*, Emily Krava, MPH^4*, Julie Jaffray, MD, MS⁵, Brian R. Branchford, MD⁶, Maua Mosha, MPH^7*, Dina Ashour, MPH^3*, Neil Goldenberg, MD, PhD⁸ and Anthony A Sochet, MD, MSc^9,10*

¹Medical College of Georgia, Augusta
²Johns Hopkins University School of Medicine, Baltimore, MD
³Johns Hopkins All Children's Hospital, Saint Petersburg, FL
⁴University of California, San Diego, San Diego, CA
⁵Rady Children's Hospital San Diego, San Diego, CA
⁶Versiti Medical Sciences Institute, Wauwatosa, WI
⁷Data Coordinating Center for Pediatric Multicenter Studies, Johns Hopkins All Children’s Hospital Institute for Clinical and Translational Research, St. Petersburg, FL
⁸Johns Hopkins All Children's Hospital, St. Petersburg, FL
⁹Institute for Clinical and Translational Research, Johns Hopkins All Children's Hospital, St. Petersburg, FL
¹⁰Anesthesiology and Critical Care Medicine, John Hopkins University School of Medicine, Baltimore, MD

Shreya Agarwal, MD¹, Penelope A. Sandiford, MD^2*, Joseph R Stanek, MS^3,4*, Sarah H. O'Brien, MD, MSc^3,5,6 and Bryce A. Kerlin, MD^7,8,9

¹Benioff Children's Hospital/University of California San Francisco, San Francisco, CA
²Division of Palliative Care Medicine, Department of Pediatrics, University of Illinois College of Medicine, Peoria, IL
³Division of Pediatric Hematology/Oncology/BMT, Nationwide Children's Hospital, Columbus, OH
⁴Biostatistics Resource at Nationwide Children's Hospital, Columbus, OH
⁵Department of Pediatrics, Ohio State University, Columbus, OH
⁶Center for Child Health Equity and Outcomes Research, The Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH
⁷Abigail Wexner Research Institute @ Nationwide Children's Hospital, Center For Clinical & Translational Research, Columbus, OH
⁸Division of Hematology/Oncology, Nationwide Children's Hospital, Columbus, OH
⁹Department of Pediatrics, Ohio State University College of Medicine, Columbus, OH

Marie-Pier Desjardins, MD, MSc^1*, Audrey Hébert, MD^2*, Anie Lapointe, MD^3*, Christine Sabapathy, MD, FRCPC, MSc^4*, Alexandra Zabeida, MD^5*, Kriti Kumar, MD^6*, Soumitra Tole, MD, MSc^7*, Mihir Bhatt, MD^8*, Mira Liebman, MD^9*, Juliette Déry, MD^10*, Ali Amid, MD^11*, Janie Charlebois, MD^12*, Marc Beltempo, MD^13* and Marie-Claude Pelland-Marcotte, MD, PhD¹⁴

¹Children’s Hospital of Eastern Ontario, Ottawa, ON, Canada
²Centre Hospitalier Universitaire de Québec, Quebec city, Canada
³Centre Hospitalier Universitaire Sainte-Justine, Montreal, Canada
⁴Department of Pediatrics, McGill University Health Centre/The Montreal Children's Hospital, Montreal, QC, Canada
⁵The Hospital for Sick Children,Toronto, Ontario, Canada, Toronto, CAN
⁶The Hospital for Sick Children, Toronto, Canada
⁷Children’s Hospital - London Sciences Health Center, London, ON, CAN
⁸Division of Pediatric Hematology/Oncology, Department of Pediatrics, McMaster Children’s Hospital, McMaster University, Hamilton, ON, Canada
⁹Children's Hospital of Eastern Ontario, Ottawa, ON, CAN
¹⁰Faculté de Médecine, Université Laval, Quebec city, Canada
¹¹BC Children's Hospital, Vancouver, Canada
¹²Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada
¹³Montreal University Health Center, Montreal, Canada
¹⁴Division of Hematology-Oncology, Department of Pediatrics, CHU de Quebec, Centre Mere-Enfant Soleil, Quebec, QC, Canada

Rupsa C Boelig^1*, James V Michael, PhD², Antonios Tawk, MD^2*, Tingting Zhan, PhD^3*, Walter Kraft, MD^4* and Steven E McKenzie, MD, PhD²

¹Department of Obstetrics and Gynecology, Maternal Fetal Medicine, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA
²The Cardeza Foundation for Hematologic Research, Thomas Jefferson University, Philadelphia, PA
³Department of Pharmacology and Experimental Therapeutics, Sidney Kimmel Cancer Center of Thomas Jefferson University, Philadelphia, PA
⁴Department of Pharmacology and Experimental Therapeutics, Sidney Kimmel Medical College, Thomas Jefferson University, 1170 Main Bldg., 132 S. 10th St., Philadelphia, PA 19107-5244, Philadelphia, PA

Mengtong Zang^*, HaiXia Fu, MD^*, Yuxiu Chen^*, Menglin Li^*, Jianying Zhou^*, Mengyu Xiao^*, Lulu Wang^*, Zhuo-Yu An^*, Xiaolu Zhu^*, Yun He^*, Chen-Cong Wang^*, KaiYan Liu, LanPing Xu, MD^*, Xiao Jun Huang and Xiaohui Zhang

Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China