@article{ref1,
title="Letter: Bone necrosis in tunnel workers",
journal="Lancet",
year="1974",
author="Stutzer, H.",
volume="2",
number="7879",
pages="530-530",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}