Headache Disorders

• Kaiser Permanente — San Diego, California, United States
• Duke University Medical Center — Durham, North Carolina, United States
• Thomas Jefferson University — Philadelphia, Pennsylvania, United States

• Innsbruck, Austria
• Linz, Austria
• Antwerp, Belgium
• Charleroi, Belgium

• MedSearch — Calera, Alabama, United States
• Clinical Research Consultants, Inc. — Hoover, Alabama, United States
• Arizona Research Center — Phoenix, Arizona, United States
• NEA Clinic — Jonesboro, Arkansas, United States

• University of Mississippi Medical Center — Jackson, Mississippi, United States

Not specified

• University of Kansas Medical Center — Kansas City, Kansas, United States
• Children's Mercy Hospital Kansas City — Kansas City, Missouri, United States

• University College London - Institute of Neurology — London, United Kingdom

• C.H.U. de Bordeaux - Groupe Hospitalier Pellegrin - Service Médecine nucléaire — Bordeaux, France
• CHU de Bordeaux - Hôpital Tastet Girard Centre Anti douleur — Bordeaux, France

• Mayo Clinic 5777 E Mayo Blvd — Phoenix, Arizona, United States
• Paradigm Clinical, Inc. 1324 W. Prince Rd — Tuscon, Arizona, United States
• Dr. Stephen David Forner - 1405 Magnolia Avenue, Suite B — Chico, California, United States
• Shanti Clinical Trials, 1880 West Washington Street — Colton, California, United States

• California Medical Clinic for Headache — Santa Monica, California, United States