@article{ref1,
title="The Zed Expedition: the world's first air ambulance?",
journal="Journal of the Royal Society of Medicine",
year="1989",
author="Scholl, M. D. and Geshekter, C. L.",
volume="82",
number="11",
pages="679-680",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0141-0768",
doi="",
url="http://dx.doi.org/"
}