Zubia Mumtaz1, Sarah Salway2, Afshan Bhatti3, Lynn McIntyre4. 1. School of Public Health, University of Alberta, Edmonton, AB, Canada. Electronic address: zubia.mumtaz@ualberta.ca. 2. National Institute for Health Research School for Public Health Research, School of Health and Related Research, University of Sheffield, Sheffield, UK. 3. Real Medicine Foundation, Pakistan. 4. Faculty of Medicine, University of Calgary, AB, Canada.