@article{Gakidou2000, author = {Gakidou, E. and Murray, C. and Frenk, J.}, title= {Defining and measuring health inequality: an approach based on the distribution of health expectancy}, year = {2000}, URL = {http://www.scielosp.org/pdf/bwho/v78n1/v78n1a05.pdf}, journal = {Bulletin of the World Health Organisation}, volume = {78}, number = {1}, pages = {42--54}, }