{"eventGroups":[{"description":"Prophylactic Treatment (standard of care prophylactic antibiotics) + Prophylactic White Cell Transfusion. Radiated white blood cell transfusions 2-3 times each week, or daily if infection develops","id":"EG000","otherNumAffected":0,"otherNumAtRisk":1,"seriousNumAffected":0,"seriousNumAtRisk":1,"title":"Arm 1 (Prophylactic Arm)"},{"description":"Prophylactic Treatment (standard of care prophylactic antibiotics) + Therapeutic White Cell Transfusion. Radiated white blood cell transfusions daily only with infection (or persistent fever)","id":"EG001","otherNumAffected":0,"otherNumAtRisk":3,"seriousNumAffected":0,"seriousNumAtRisk":3,"title":"Arm 2 (Therapeutic Arm)"}],"frequencyThreshold":"5","timeFrame":"Adverse events collected for up to two cycles of anti-leukemia treatment. Overall study period: June 16, 2011 to August 30, 2012."}