@article{ref1,
title="Assessing trends over time",
journal="International journal of injury control and safety promotion",
year="2016",
author="Bangdiwala, Shrikant I.",
volume="23",
number="2",
pages="224-226",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1745-7300",
doi="10.1080/17457300.2016.1159833",
url="http://dx.doi.org/10.1080/17457300.2016.1159833"
}