@article{ref1,
title="Appearance of the hymen in adolescents is not well documented",
journal="British medical journal: BMJ",
year="1999",
author="Curtis, E. and San Lazaro, C.",
volume="318",
number="7183",
pages="605-605",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}