Relapse Leukemia

• City of Hope Cancer Center (Data collection only) — Duarte, California, United States
• Memorial Sloan Kettering at Basking Ridge (All Protocol Activities) — Basking Ridge, New Jersey, United States
• Memorial Sloan Kettering Monmouth (All Protocol Activities) — Middletown, New Jersey, United States
• Memorial Sloan Kettering Bergen (All Protocol Activities) — Montvale, New Jersey, United States

• Children's Hospital of Philadelphia — Philadelphia, Pennsylvania, United States

• Dr. Sameer Bakhshi — New Delhi, India
• Dr. Biswajit Dubashi — Puducherry, India

• Ruijin Hospital, Shanghai Jiaotong University School of Medicine — Shanghai, Shanghai Municipality, China

Not specified

• Aou Arcispedale Sant'Anna - Cona (Fe) - Uoc Ematologia E Fisiopatologia Della Coagulazione — Cona, Ferrara, Italy
• Aon Ss. Antonio E Biagio E C. Arrigo - Alessandria - Soc Ematologia — Alessandria, Italy
• Aou Consorziale Policlinico - Bari - Uo Ematologia Con Trapianto — Bari, Italy
• Ao Brotzu, Presidio Ospedaliero A. Businco - Cagliari - Sc Ematologia E Ctmo — Cagliari, Italy

• Shanxi Bethune Hospital — Taiyuan, Shanxi, China

• University of Michigan — Ann Arbor, Michigan, United States
• University of Cincinnati — Cincinnati, Ohio, United States
• Ohio State Comprehensive Cancer Center — Columbus, Ohio, United States
• MD Anderson Cancer Center — Huston, Texas, United States

• Beijing Boren Hospital — Beijing, Beijing Municipality, China

• Aarhus University Hospital, Department of Pediatrics Skejby Hospital — Aarhus, Aarhus N, Denmark