@article{ref1,
title="Chronic fatigue syndrome; psychiatric aspects",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1991",
author="Hawton, Keith E. and Hengeveld, M. W.",
volume="135",
number="43",
pages="2014-2017",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}