@article{ref1,
title="Was it really murder?",
journal="Gastrointestinal endoscopy",
year="1971",
author="Nelson, Robert S.",
volume="18",
number="1",
pages="39-40",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0016-5107",
doi="10.1016/S0016-5107(71)74023-1",
url="http://dx.doi.org/10.1016/S0016-5107(71)74023-1"
}