Statement: the primary trial and the secondary trial both have control groups. 
Primary_evidence: INTERVENTION 1:    Health Tracking (Control)   Participants assigned to the health-tracking condition received usual care and did not attend any meetings. INTERVENTION 2:    Peer Support   The peer support group meetings focused on fostering purpose in life by providing participants with opportunities to support and care for one another. Patients completed a weekly diary of critical experiences or current life problems as homework, and were then encouraged to share these experiences in the group meetings. The group facilitator encouraged participants to help one another with these issues, and share how they had dealt with similar problems.
Secondary_evidence: INTERVENTION 1:    Exemestane (Exemestane Alone)   oral dose exemestane taken with food (25 mg tablet once daily) INTERVENTION 2:    Combination (Exemestane + Celecoxib)   oral doses to be taken with food (25 mg tablet exemestane once daily; celecoxib 2 x 200 mg tablets twice daily)