@article{ref1,
title="Adolescent sexuality",
journal="British medical journal: BMJ",
year="1990",
author="Donovan, C.",
volume="300",
number="6731",
pages="1026-1027",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}