1. Community Health Division, Central Michigan University, 2219 Health Professions Building, Mt. Pleasant, MI 48859, USA
2. Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, TRW Building, Room 3D10, 3280 Hospital Drive NW, Calgary, Alberta, Canada T2N 4Z6
3. Seniors Health Strategic Clinical Network, Alberta Health Services, FMC, South Tower, Room 1103, 1403 29th Street NW, Calgary, Alberta, Canada T2N 2T9