@article{ref1,
title="Alcoholism and correlates of mortality. Implications for epidemiology",
journal="Journal of studies on alcohol",
year="1978",
author="Edwards, G. and Kyle, E. and Nicholls, P. and Taylor, C.",
volume="39",
number="9",
pages="1607-1617",
abstract="In 935 alcoholics, alcoholism increased the risk of death more in upper-class than in lower-class alcoholics, the middle-class alcoholics holding an intermediate position closer to that of the upper-class alcoholics.<p /><p>Language: en</p>",
language="en",
issn="0096-882X",
doi="",
url="http://dx.doi.org/"
}