References
Whitehead M, Dahlgren G. Levelling up (part 1)
Whitehead M, Dahlgren G. Levelling up (part 1): a discussion paper on concepts and principles for tackling social inequities in health [Internet]. Copenhagen (Denmark): World Health Organization, Regional Office for Europe; 2006 [cited 2021 Sep 21]. 30 p.
https://www.who.int/social_determinants/resources/leveling_up_part1.pdf