@article{ref1,
title="Biochemical response of male volunteers ingesting inorganic lead for 49 days",
journal="International archives of occupational and environmental health",
year="1976",
author="Cools, A. and Sallé, H. J. and Verberk, M. M. and Zielhuis, L.",
volume="38",
number="2",
pages="129-139",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0340-0131",
doi="",
url="http://dx.doi.org/"
}