1. aResearch Centre of the University of Montréal Hospital Centre, University of Montréal, 1301 rue Sherbrooke Est, Montréal, Québec, H2L 1M3, Canada.
2. bCrime, Violence and Injury Lead Programme, Medical Research Council – University of South Africa, Cape Town, South Africa.
3. cDepartment of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.