@article{ref1,
title="More violent assaults reported to the police and increasing gang violence. a survey of violence-related personal injuries in Umea",
journal="Lakartidningen",
year="2005",
author="Danielsson, Asa and Blomqvist, Elin and Bylund, Per-Olof and Bjornstig, Ulf",
volume="102",
number="12-13",
pages="945-948",
abstract="Abstract unavailable.",
language="",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}