@article{ref1,
title="Studies on dark adaptation and color perception in patients with chronic liver diseases. 2. Color perception disorders in patients with chronic liver diseases",
journal="Deutsche Gesundheitswesen",
year="1972",
author="Klein, S. and Dökert, B. and Dressel, H. and Renger, F. and Marré, E.",
volume="27",
number="8",
pages="377-381",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0219",
doi="",
url="http://dx.doi.org/"
}