@article{ref1,
title="Too hard training can cause injuries and disturbed growth among children and adolescents",
journal="Lakartidningen",
year="1991",
author="Andren-Sandberg, A.",
volume="88",
number="13",
pages="1192-1192",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}