{"groups":[{"description":"Sentinel node resection immediately followed by axillary dissection\n\nconventional surgery: Sentinel node resection immediately followed by axillary dissection.","id":"FG000","title":"Arm I: Conventional Axillary Dissection"},{"description":"Sentinel node resection followed by node examination then axillary dissection if positive sentinel node.\n\nSentinel node resection followed by node examination: Sentinel node resection followed by node examination then axillary dissection if positive sentinel node. No axillary dissection for negative sentinel node.","id":"FG001","title":"Arm II: Sentinel Node Resection Followed by Node Examination"}],"periods":[{"dropWithdraws":[{"reasons":[{"groupId":"FG000","numSubjects":"3"},{"groupId":"FG001","numSubjects":"0"}],"type":"No follow up data"},{"reasons":[{"groupId":"FG000","numSubjects":"829"},{"groupId":"FG001","numSubjects":"793"}],"type":"Sentinel node positive patients"}],"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"2807"},{"groupId":"FG001","numSubjects":"2804"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"1975"},{"groupId":"FG001","numSubjects":"2011"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"832"},{"groupId":"FG001","numSubjects":"793"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}]}