{"groups":[{"description":"Experimental: letrozole single arm trial - all patients received letrozole 2.5mg by mouth per day","id":"FG000","title":"Letrozole"}],"periods":[{"milestones":[{"achievements":[{"groupId":"FG000","numSubjects":"26"}],"type":"STARTED"},{"achievements":[{"groupId":"FG000","numSubjects":"26"}],"type":"COMPLETED"},{"achievements":[{"groupId":"FG000","numSubjects":"0"}],"type":"NOT COMPLETED"}],"title":"Overall Study"}],"preAssignmentDetails":"27 patients were enrolled, and 26 patients received at least one dose of study medication and were included in the analysis."}