@article{ref1,
title="Tobacco, alcohol and other drug use among medical students",
journal="Irish medical journal",
year="1977",
author="Herity, B. A. and Horgan, J. M. and Bourke, G. J. and Wilson-Davis, K.",
volume="70",
number="18",
pages="532-539",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0332-3102",
doi="",
url="http://dx.doi.org/"
}