@article{Walker2022,
author = {Walker, B.H. and Brown, D.C.},
title= {Trends in lifespan variation across the spectrum of rural and urban places in the United States, 1990–2017},
year = {2022},
doi = {10.1016/j.ssmph.2022.101213},
volume = {19},
number = {101213},
}