@article{ref1,
title="Letter: Fatigue fractures of the ribs during paddling in river rapids",
journal="Tidsskrift for den Norske Laegeforening",
year="1976",
author="Wannag, A.",
volume="96",
number="12",
pages="723-724",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}