@article{ref1,
title="Diving into the unknown",
journal="British medical journal: BMJ",
year="1991",
author="Gibbons, C. L. and McLain, A. D. and Simpson, A. Hamish",
volume="302",
number="6782",
pages="963-964",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}