@article{ref1,
title="Sexuality, condom use and gender norms among Brazilian teenagers",
journal="Reproductive health matters",
year="1993",
author="Paiva, V.",
volume="1",
number="2",
pages="98-109",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0968-8080",
doi="10.1016/0968-8080(93)90014-K",
url="http://dx.doi.org/10.1016/0968-8080(93)90014-K"
}