@article{ref1,
title="The generality of pain tolerance",
journal="Journal of psychosomatic research",
year="1969",
author="Davidson, P. O. and McDougall, C. E.",
volume="13",
number="1",
pages="83-89",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3999",
doi="",
url="http://dx.doi.org/"
}