[1] Albert Einstein Coll Med, Dept Neurol, Bronx, NY 10467 USA
[2] Mayo Clin, Rochester, MN USA
[3] Georgetown Univ Hosp, Dept Neurol, Washington, DC USA
[4] Palm Beach Headache Ctr, W Palm Beach, FL USA
[5] Neurol Res Inst Palm Beach, W Palm Beach, FL USA
[6] Premiere Res Inst, W Palm Beach, FL USA
[7] Palm Beach Neurol, W Palm Beach, FL USA
[8] Nova Southeastern Univ, Ft Lauderdale, FL 33314 USA
[9] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[10] Pacific Northwest Stat Consulting Inc, Woodinville, WA USA
[11] Alder BioPharmaceut Inc, Bothell, WA USA