@article{ref1,
title="Impact of mass media on adolescent sexual behavior: the chicken or the egg?",
journal="American journal of diseases of children (1960)",
year="1980",
author="Hein, K.",
volume="134",
number="2",
pages="133-134",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0002-922X",
doi="",
url="http://dx.doi.org/"
}