@article{ref1,
title="Spinal fractures in Bechterew's disease. Injuries most likely underdiagnosed",
journal="Lakartidningen",
year="1993",
author="Hägglund, G. and Johnsson, R. and Strömqvist, B.",
volume="90",
number="5",
pages="364-366",
abstract="<p>[Abstract unavailable]</p> <p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}