[1
]
Department of Neurology, Mayo Clinic, Phoenix, AZ, USA. Electronic address: dodick.david@mayo.edu.
[2
]
NIHR-Wellcome Trust Clinical Research Facility, King's College London, London, UK;
Department of Neurology, University of California, San Francisco, CA, USA.
[3
]
Department of Neurology, Thomas Jefferson University, Jefferson Headache Center, Philadelphia,
PA, USA.
[4
]
Department of Neurology and the Montefiore Headache Center, Albert Einstein College
of Medicine, Bronx, NY, USA.
[5
]
Danish Headache Center and Department of Neurology, Glostrup Hospital, Faculty of
Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
[6
]
MD Clinical, Hallandale Beach, FL, USA.
[7
]
California Medical Clinic for Headache, Santa Monica, CA, USA.
[8
]
Women's Clinical Research Center, Seattle, WA, USA.
[9
]
Miami Research Associates, South Miami, FL, USA.
[10
]
Boston Clinical Trials, Boston, MA, USA.
[11
]
Pacific Northwest Statistical Consulting, Woodinville, WA, USA.
[12
]
Alder BioPharmaceuticals, Bothell, WA, USA.