{"groups":[{"description":"Patients undergo bone marrow biopsy using the power drill. Patients complete questionnaires at baseline, 30 minutes after biopsy, and on days 1, 3, and 7.\n\nPower drill: Undergo bone marrow biopsy using power drill","id":"FG000","title":"Arm I (Biopsy Using Power Drill)"},{"description":"Patients undergo bone marrow biopsy using the traditional Jamshidi needle. Patients complete questionnaires at baseline, 30 minutes after biopsy, and on days 1, 3, and 7.\n\nJamshidi needle: Undergo bone marrow biopsy using Jamshidi needle","id":"FG001","title":"Arm II (Biopsy Using Jamshidi Needle)"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"50"},{"groupId":"FG001","numSubjects":"50"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"50"},{"groupId":"FG001","numSubjects":"50"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"},{"groupId":"FG001","numSubjects":"0"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}