@article{ref1,
title="Prevalence of smoking and drinking among students in north-eastern India",
journal="National medical journal of India, The",
year="2003",
author="Sinha, Dhirendra N. and Gupta, Prakash C. and Pednekar, Mangesh S.",
volume="16",
number="1",
pages="49-50",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0970-258X",
doi="",
url="http://dx.doi.org/"
}