{"eventGroups":[{"description":"Patients with high-risk hematologic malignancy transplanted with umbilical cord blood via direct marrow injection.","id":"EG000","otherNumAffected":0,"otherNumAtRisk":12,"seriousNumAffected":5,"seriousNumAtRisk":12,"title":"Umbilical Cord Blood Transplant Patients"}],"frequencyThreshold":"5","seriousEvents":[{"assessmentType":"SYSTEMATIC_ASSESSMENT","organSystem":"Blood and lymphatic system disorders","stats":[{"groupId":"EG000","numAffected":1,"numAtRisk":12,"numEvents":1}],"term":"graft failure"},{"assessmentType":"SYSTEMATIC_ASSESSMENT","organSystem":"Blood and lymphatic system disorders","stats":[{"groupId":"EG000","numAffected":2,"numAtRisk":12,"numEvents":2}],"term":"Acute GVHD Grade 3"},{"assessmentType":"NON_SYSTEMATIC_ASSESSMENT","organSystem":"General disorders","stats":[{"groupId":"EG000","numAffected":5,"numAtRisk":12,"numEvents":5}],"term":"Death"}]}