@article{ajphr201425A0,
author={Zhao, Ningning},
title={Foreword for Special Issue},
journal={American Journal of Public Health Research},
volume={2},
number={5A},
pages={0--0},
year={2014},
url={http://pubs.sciepub.com/ajphr/2/5A/0},
issn={2327-6703},
doi={10.12691/ajphr-2-5A-0}
publisher={Science and Education Publishing}
}