@article{ref1,
title="Suicidal ideation and suicide attempts in panic disorder",
journal="New England journal of medicine",
year="1990",
author="",
volume="322",
number="18",
pages="1320-1321",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}