@article{ref1,
title="Protecting children from lead poisoning and building healthy communities",
journal="American journal of public health",
year="1999",
author="Ryan, D. and Levy, B. and Levy, B. S. and Pollack, S. and Walker, B.",
volume="89",
number="6",
pages="822-824",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}