Anita Kothari1
, S Michelle Driedger2
, Julia Bickford1
, Jason Morrison3
, Michael Sawada4
, Ian D Graham5
and Eric Crighton6 
1
Faculty of Health Sciences, University of Western Ontario, Arthur & Sonia Labatt Health Sciences Building, Room 222, N6A 5B9, London, Ontario, Canada
2
Department of Community Health Sciences, University of Manitoba, S113-750 Bannatyne Ave, R3E 0W3, Winnipeg, Manitoba, Canada
3
Department of Biosystems Engineering, University of Manitoba, E2-376 Engineering Building, University of Manitoba, R3T 5V6, Winnipeg, Manitoba, Canada
4
Laboratory for Applied Geomatics and GIS Science (LAGGISS), Department of Geography, University of Ottawa, K1N 6N5, Ottawa, Ontario, Canada
5
School of Nursing and Dept of Epidemiology & Community Medicine, University of Ottawa – 451 Smyth Road, K1H 8M5, Affiliate Scientist, Clinical Epidemiology Program, Ottawa Health Research Institute, VP Knowledge Translation, Canadian Institutes of Health Research, Ottawa, Ontario, Canada
6
Department of Geography, University of Ottawa, K1N 6N5, Ottawa, Ontario, Canada