[1
]
From the Headache Group (A.R.T., P.J.G.) and Memory and Aging Center (A.R.T., A.T.,
C.C.G., W.W.S.), Department of Neurology, University of California, San Francisco;
and NIHR/Wellcome Trust Clinical Research Facility (P.J.G.), King's College London,
UK. amy.tso@ucsfmedctr.org.
[2
]
From the Headache Group (A.R.T., P.J.G.) and Memory and Aging Center (A.R.T., A.T.,
C.C.G., W.W.S.), Department of Neurology, University of California, San Francisco;
and NIHR/Wellcome Trust Clinical Research Facility (P.J.G.), King's College London,
UK.