{"groups":[{"description":"Busulfan targeted area under the curve, level 1: 6000 +/- 600 uM-min","id":"FG000","title":"AUC Level 1"},{"description":"Busulfan targeted area under the curve, level 2: 7500 +/- 750 uM-min","id":"FG001","title":"AUC Level 2"},{"description":"Busulfan targeted area under the curve, level 3: 9000 +/- 900 uM-min","id":"FG002","title":"AUC Level 3"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"40"},{"groupId":"FG001","numSubjects":"29"},{"groupId":"FG002","numSubjects":"3"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"40"},{"groupId":"FG001","numSubjects":"29"},{"groupId":"FG002","numSubjects":"3"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"0"},{"groupId":"FG002","numSubjects":"0"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}],"preAssignmentDetails":"candidates not meeting eligibility criteria excluded.","recruitmentDetails":"BMT population recruited from 08/01/2005 through 09/09/2012"}