@article{ref1,
title="Epidemiology of international terrorism incomplete",
journal="European journal of epidemiology",
year="2005",
author="Halpern, Pinchas",
volume="20",
number="8",
pages="735-735",
abstract="Abstract unavailable. Letter to the editor.",
language="",
issn="0393-2990",
doi="10.1007/s10654-005-2064-x",
url="http://dx.doi.org/10.1007/s10654-005-2064-x"
}