[1] Univ Alberta, Fac Nursing, Edmonton, AB, Canada
[2] Univ Alberta, Sch Med, Edmonton, AB, Canada
[3] Athabasca Univ, Fac Humanities & Social Sci, Athabasca, AB, Canada
[4] Univ Calgary, Fac Nursing, Calgary, AB, Canada
[5] Univ Calgary, Fac Med, Calgary, AB, Canada
[6] Univ Manitoba, Dept Environm & Geog, Winnipeg, MB, Canada
[7] Univ Alberta, Fac Nursing, Social Support Res Program, Edmonton Clin Hlth Acad, Level 3, Edmonton, AB, Canada
[8] Univ Alberta, Fac Nursing, Edmonton Clin Hlth Acad, Level 3, Edmonton, AB, Canada
[9] Univ Alberta, Sch Publ Hlth, Edmonton Clin Hlth Acad, Level 3, Edmonton, AB, Canada
[10] Queens Univ, Sch Kinesiol & Hlth Study, Dept Geog, SKHS Bldg 28 Div St, Kingston, ON K7L, Canada