@article{ref1,
title="Letter: Alternatives to the linear risk hypothesis",
journal="Health physics",
year="1976",
author="Craig, A. G.",
volume="31",
number="1",
pages="81-82",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0017-9078",
doi="",
url="http://dx.doi.org/"
}