@article{ref1,
title="Closed chest injuries in mining practice",
journal="Proceedings of the Mine Medical Officers' Association",
year="1974",
author="Grundlingh, L. H.",
volume="53",
number="418",
pages="77-81",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-4490",
doi="",
url="http://dx.doi.org/"
}