Migraine

• San Francisco Clinical Research Center — San Francisco, California, United States
• California Medical Clinic for Headache — Santa Monica, California, United States
• Associated Neurologists of Southern CT, P.C. — Fairfied, Connecticut, United States
• Premiere Research Institute — West Palm Beach, Florida, United States

• Massachusetts General Hospital — Boston, Massachusetts, United States

• Beth Israel Deaconess Medical Center: Berenson-Allen Center for Noninvasive Brain Stimulation — Boston, Massachusetts, United States

• Teva Investigational Site — La Mesa, California, United States
• Duramed Investigational Site — San Diego, California, United States
• Teva Investigational Site — San Diego, California, United States
• Duramed Investigational Site — San Francisco, California, United States

• GSK Investigational Site — Chandler, Arizona, United States
• GSK Investigational Site — Irvine, California, United States
• GSK Investigational Site — Redondo Beach, California, United States
• GSK Investigational Site — San Francisco, California, United States

• Buckler Chiropractic — Phoenix, Arizona, United States
• Doctor's office — Scottsdale, Arizona, United States

Not specified

• St. David's Medical Center — Austin, Texas, United States

• The Johns Hopkins Bayview Headache Center — Baltimore, Maryland, United States

• Volker Pfaffenrath — Munich, Bavaria, Germany