@article{Yen2008,
author = {Yen, I.H. and Yelin, E. and Katz, P. and Eisner, M.D. and Blanc, P.D.},
title= {Impact of perceived neighborhood problems on change in asthma-related health outcomes between baseline and followup},
year = {2008},
doi = {10.1016/j.healthplace.2007.09.003},
journal = {Health & Place },
volume = {14},
number = {3},
pages = {468--477},
}