@article{ref1,
title="Excretion patterns of air traffic controllers",
journal="Aerospace medicine",
year="1971",
author="Hale, H. B. and Williams, E. W. and Smith, B. N. and Melton, C. E. Jr",
volume="42",
number="2",
pages="127-138",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}