@article{ref1,
title="Roller-coaster headache",
journal="New England journal of medicine",
year="1995",
author="Bo-Abbas, Y. and Bolton, C. F.",
volume="332",
number="23",
pages="1585-1585",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM199506083322317",
url="http://dx.doi.org/10.1056/NEJM199506083322317"
}