@article{ref1,
title="Suicide among us. II. Habits of nervous tension as potential predictors",
journal="Johns Hopkins medical journal",
year="1971",
author="Thomas, C. B.",
volume="129",
number="4",
pages="190-201",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-7263",
doi="",
url="http://dx.doi.org/"
}