@article{James2018,
author = {James, W.L. and Cossman, J.S. and Wolf, J.K.},
title= {Persistence of death in the United States: The remarkably different mortality patterns between America’s heartland and dixieland},
year = {2018},
doi = {10.4054/DemRes.2018.39.33},
volume = {39},
number = {1},
pages = {897--910},
}