@article{Singh2014,
author = {Singh, G.K.  and Siahpush, M. },
title= {Widening rural–urban disparities in all-cause mortality and mortality from major causes of death in the USA, 1969–2009},
year = {2014},
doi = {10.1007/s11524-013-9847-2},
journal = {Journal of Urban Health },
volume = {91},
number = {2},
pages = {272--292},
}