Evaluating Harms and Benefits of Endocrine Therapy in Patients ≥70 Years of Age With Lower Risk Breast Cancer

Cross Cancer Institute, Edmonton, Alberta, Canada

Waterloo Regional Health Network, Kitchener, Ontario, Canada

London Health Sciences Centre, London, Ontario, Canada

Oak Valley Health, Markham, Ontario, Canada

The Ottawa Hospital, Ottawa, Ontario, Canada

Thunder Bay Regional Health Sciences Centre, Thunder Bay, Ontario, Canada

Allan Blair Cancer Centre, Regina, Saskatchewan, Canada

Saskatoon Cancer Centre, Saskatoon, Saskatchewan, Canada