@article{Powell2007,
author = {Powell, L.M. and Slater, S. and Mirtcheva, D. and Bao, Y. and Chaloupka, F.J.},
title= {Food store availability and neighborhood characteristics in the United States},
year = {2007},
doi = {10.1016/j.ypmed.2006.08.008},
journal = {Preventive Medicine },
volume = {44},
number = {3},
pages = {189--195},
}