1. Whitehead M: The concepts and principles of equity and health. Int J Health Serv. 1992, 22: 429-445. 10.2190/986L-LHQ6-2VTE-YRRN.
2. Kelly MP, Morgan A, Exworthy M, Popay J, Tugwell P, Robinson V, Simpson S, Narayan T, Myer L, Houweling T, et al: The social determinants of health: developing an evidence base for political action: final report to the world health organization commission on the social determinants of health. 2007, Geneva
3. White M, Adams J, Heywood P: How and why do interventions that increase health overall widen inequalities with populations?. Social inequality and public health. Edited by: Babones SJ. 2009, Bristol: The Policy Press, University of Bristol, 65-82. 1
4. World Health Assembly: Resolution 5834 on the ministerial summit on health research. 2005, 5834-
5. Lavis JN, Davies HTO, Gruen RL: Working within and beyond the cochrane collaboration to make systematic reviews more useful to healthcare managers and policy makers. Healthcare Policy. 2006, 1: 21-33.