@article{ref1,
title="Thunderclap headache--and a tender neck",
journal="Lancet",
year="2007",
author="Price, Lindsey and Parghi, Chirag and Khan, Rashid",
volume="370",
number="9603",
pages="1974-1974",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="10.1016/S0140-6736(07)61817-0",
url="http://dx.doi.org/10.1016/S0140-6736(07)61817-0"
}