@article{ref1,
title="A comparison of suicidal thinkers and attempters: interim findings",
journal="Diseases of the nervous system",
year="1971",
author="Humphrey, J. A. and Niswander, G. D. and Casey, T. M.",
volume="32",
number="12",
pages="825-830",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0012-3714",
doi="",
url="http://dx.doi.org/"
}