@article{ref1,
title="Conditioned and unconditioned probability",
journal="Tidsskrift for den Norske Laegeforening",
year="1992",
author="Stavem, P. and Waaler, H. T.",
volume="112",
number="2",
pages="254-255",
abstract="<p>[Abstract unavailable]</p> <p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}