@article{ref1,
title="Periodic medical examination. Update 1990. Early diagnosis of depression and the prevention of suicide. The Canadian Study Group on Periodic Medical Examination",
journal="Unión médicale du Canada",
year="1991",
author="",
volume="120",
number="1",
pages="17-22, 16",
abstract="<p>[Abstract unavailable]</p><p>Language: fr</p>",
language="fr",
issn="0041-6959",
doi="",
url="http://dx.doi.org/"
}