@article{ref1,
title="Trends in adolescent health: Perspective from the United States",
journal="International journal of adolescent medicine and health",
year="2001",
author="Blum, R.W.",
volume="13",
number="4",
pages="287-295",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0334-0139",
doi="",
url="http://dx.doi.org/"
}