@article{Singh2017,
author = {Singh, G.K. and Kogan, M.D. and Slifkin, R.T.},
title= {Widening disparities in infant mortality and life expectancy between Appalachia and the rest of the United States, 1990–2013},
year = {2017},
doi = {10.1377/hlthaff.2016.1571},
volume = {36},
number = {8},
pages = {1423--1432},
}