@article{ref1,
title="Suicide rate and blood groups: an ecological study of 39 nations",
journal="Perceptual and motor skills",
year="2004",
author="Voracek, Martin",
volume="99",
number="3",
pages="896-898",
abstract="Across 29 European and 10 non-European nations, contemporary suicide rates for men and women were negatively correlated with national proportions of people with Type O blood, thus replicating and extending findings of Lester (1987) and Lester and Kondrichin (2004).",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}