@article{Elo2009,
author = {Elo, I.T. },
title= {Social class differentials in health and mortality: Patterns and explanations in comparative perspective},
year = {2009},
doi = {10.1146/annurev-soc-070308-115929},
journal = {Annual Review of Sociology },
volume = {35},
pages = {553--572},
}