@article{ref1,
title="Birth order as a patient variable in military psychiatry",
journal="Military medicine",
year="1970",
author="Herrell, J. M.",
volume="135",
number="11",
pages="1001-1006",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}