@article{ref1,
title="The psychological pain assessment scale",
journal="Suicide and life-threatening behavior",
year="1999",
author="Shneidman, E. S.",
volume="29",
number="4",
pages="287-294",
abstract="Abstract unavailable.",
language="",
issn="0363-0234",
doi="",
url="http://dx.doi.org/"
}