1. School of Health and Social Care, University of Essex, Colchester, UK
2. School of Public Health, University of Cape Town, Cape Town, South Africa
3. Department of Psychosocial and Psychoanalytic Studies, University of Essex, Colchester, UK
4. School for Healthcare Enterprise and Innovation, Faculty of Medicine, University of Southampton, Southampton, UK
5. School of Public Health, University of the Western Cape, Cape Town, South Africa
6. Division of Public Health Medicine, University of Cape Town, Cape Town, South Africa
7. Burden of Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
8. Department of Sociology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
9. Department of Health, Life Cycles and Society, Universidade de São Paulo, São Paulo, Brazil
10. Population Studies Centre 'Elza Berquó', Universidade Estadual de Campinas, São Paulo, Brazil
11. Department of Social Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil