@article{ref1,
title="Actions of caffeine in the brain with special reference to factors that contribute to its widespread use",
journal="Pharmacological reviews",
year="1999",
author="Fredholm, B. B. and Bättig, K. and Holmen, J. and Nehlig, A. and Zvartau, E. E.",
volume="51",
number="1",
pages="83-133",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-6997",
doi="",
url="http://dx.doi.org/"
}