@article{Rosero-Bixby2018High life expectancy and reversed socioeconomic gradients of elderly people in Mexico and Costa Rica,
author = {Rosero-Bixby, L.},
title= {Demographic Research},
year = {2018High life expectancy and reversed socioeconomic gradients of elderly people in Mexico and Costa Rica},
doi = {10.4054/DemRes.2018.38.3},
volume = {3},
number = {95–108},
}