@article{ref1,
title="Risky business: is personal risk an obligation in treating patients?",
journal="Clinical neurosurgery",
year="1989",
author="Black, P. M.",
volume="35",
number="",
pages="487-499",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0069-4827",
doi="",
url="http://dx.doi.org/"
}