{"groups":[{"description":"1 year to \\< 10 years pediatric patients","id":"FG000","title":"Group 1"},{"description":"\\>= 10 years to \\<18 years pediatric patients","id":"FG001","title":"Group 2"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"3"}],"type":"New Cancer Therapy"},{"reasons":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"1"}],"type":"Adverse Event"},{"reasons":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"1"}],"type":"Disease Progression"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"8"},{"groupId":"FG001","numSubjects":"7"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"5"},{"groupId":"FG001","numSubjects":"2"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"5"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}