@article{ref1,
title="The significance of mass surveys of persons handling pesticides",
journal="Zeitschrift fur die Gesamte Hygiene und Ihre Grenzgebiete",
year="1964",
author="Grunewald, A.",
volume="10",
number="9",
pages="631-635",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0049-8610",
doi="",
url="http://dx.doi.org/"
}