@article{ref1,
title="Apnoeic diving black-out",
journal="South African medical journal SAMJ",
year="1981",
author="Smit, P. J.",
volume="59",
number="13",
pages="441-441",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-2469",
doi="",
url="http://dx.doi.org/"
}