@article{ref1,
title="Development of children with elevated blood lead levels. Letter 2",
journal="Journal of pediatrics",
year="1972",
author="Powell, K. R. and Rolfe, U. T. and Kotok, D.",
volume="81",
number="3",
pages="628-630",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3476",
doi="",
url="http://dx.doi.org/"
}