@article{ref1,
title="Estimating alcohol content of drinks: common errors in applying the unit system",
journal="British medical journal: BMJ",
year="1989",
author="Stockwell, T. and Stirling, L.",
volume="298",
number="6673",
pages="571-572",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}