@article{ref1,
title="Amenorrhea due to fear",
journal="La Semana Médica",
year="1951",
author="Colmeiro-Laforet, C.",
volume="99",
number="7",
pages="279-283",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0370-9590",
doi="",
url="http://dx.doi.org/"
}