@article{Cradock2005,
author = {Cradock, A.L. and Kawachi, I. and Colditz, G.A. and Hannon, C. and Melly, S.J. and Wiecha, J.L. and Gortmaker, S.L.},
title= {Playground safety and access in Boston neighborhoods},
year = {2005},
doi = {10.1016/j.amepre.2005.01.012},
journal = {American Journal of Preventive Medicine},
volume = {28},
number = {4},
pages = {357--363},
}