@article{ref1,
title="The prevalence of ingestion and mouthing of nonedible substances by children",
journal="Clinical proceedings - Children's Hospital of the District of Columbia",
year="1962",
author="Millican, F. K. and Layman, E. M. and Lourie, R. S. and Takahashi, L. Y. and Dublin, C. C.",
volume="18",
number="",
pages="207-214",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-4129",
doi="",
url="http://dx.doi.org/"
}