@article{ref1,
title="Experts warn: bombings and bomb threats may be entering new phase",
journal="Hospital security and safety management",
year="1992",
author="",
volume="13",
number="2",
pages="12-14",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0745-1148",
doi="",
url="http://dx.doi.org/"
}