@article{Yang2008,
author = {Yang, Y.},
title= {Trends in US adult chronic disease mortality, 1960-1999: Age, period, and cohort variations},
year = {2008},
doi = {10.1353/Dem.0.0000},
journal = {Demography},
volume = {45},
number = {2},
pages = {387--416},
}