{"eventGroups":[{"description":"Recipients of HLA identical sibling stem cell transplants","id":"EG000","otherNumAffected":0,"otherNumAtRisk":3,"seriousNumAffected":2,"seriousNumAtRisk":3,"title":"HLA-identical Sibling Transplant"},{"description":"Recipients of unrelated matched or single antigen mismatched donor stem cell transplant or single antigen mismatched family donor stem cell transplants","id":"EG001","otherNumAffected":0,"otherNumAtRisk":1,"seriousNumAffected":0,"seriousNumAtRisk":1,"title":"Unrelated Matched or Single Antigen Mismatched Transplant"}],"frequencyThreshold":"5","seriousEvents":[{"assessmentType":"SYSTEMATIC_ASSESSMENT","organSystem":"Blood and lymphatic system disorders","stats":[{"groupId":"EG000","numAffected":1,"numAtRisk":3,"numEvents":1},{"groupId":"EG001","numAffected":0,"numAtRisk":1,"numEvents":0}],"term":"Blood/Bone Marrow - Other: Engraftment Failure"},{"assessmentType":"SYSTEMATIC_ASSESSMENT","organSystem":"Infections and infestations","stats":[{"groupId":"EG000","numAffected":1,"numAtRisk":3,"numEvents":2},{"groupId":"EG001","numAffected":0,"numAtRisk":1,"numEvents":0}],"term":"Infection (documented clinically or microbiologically) with Grade 3 or 4 neutrophils (ANC <1.0 x 10e"}]}