@article{Wang2006,
author = {Wang, Y. and Zhang, Q.},
title= {Are American children and adolescents of low socioeconomic status at increased risk of obesity? Changes in the association between overweight and family income between 1971 and 2002},
year = {2006},
doi = {10.1093/ajcn/84.4.707},
volume = {84},
number = {4},
pages = {707--716},
}