@article{ref1,
title="Alcohol and the U-shaped curve",
journal="Lancet",
year="1989",
author="Shaper, A. G. and Wannamethee, G. and Walker, M.",
volume="1",
number="8633",
pages="336-336",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}