@article{ref1,
title="How to avoid drowning in your data: learning how to swim",
journal="American journal of public health",
year="1967",
author="Kantor, S. and Ibrahim, M. A. and Winkelstein, W.",
volume="57",
number="11",
pages="1973-1978",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}