1. St. Michael's Hospital Toronto ON Canada
2. Institute for Clinical Evaluative Sciences Toronto ON Canada
3. Dalla Lana School of Public Health University of Toronto Toronto ON Canada
4. Ingram School of Nursing & Department of Obstetrics and Gynecology and Research Institute of the McGill University Health Centre McGill University Montreal QC Canada
5. Department of Public Health Section of Social Medicine University of Copenhagen Copenhagen Denmark
6. Rutgers School of Public Health Piscataway NJ USA
7. School of Public Health University of California Berkeley CA USA
8. CIBERESP and Universidad de Alcalá Madrid Spain
9. National Centre of Epidemiology Madrid Spain
10. Judith Lumley Centre School of Nursing and Midwifery Faculty of Health Sciences La Trobe University Melbourne Vic. Australia
11. Clinical Epidemiology Department of Medicine Karolinska Institutet and Centre for Health Equity Studies Stockholm Sweden