@article{ref1,
title="An analysis of the sequence of selected events in the lives of a suicidal population: a preliminary report",
journal="Journal of nervous and mental disease",
year="1972",
author="Humphrey, J. A. and Puccio, D. and Niswander, G. D. and Casey, T. M.",
volume="154",
number="2",
pages="137-140",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-3018",
doi="",
url="http://dx.doi.org/"
}