Trigeminal Neuralgia

• University of California, Los Angeles (UCLA) — Los Angeles, California, United States
• Meridien Research — Tampa, Florida, United States
• Columbia University Medical Center — New York, United States
• University of Pittsbugh Medical Center (UPMC) — Pittsburgh, Pennsylvania, United States

• Parexel International — London, United Kingdom

• Chicago Anesthesia Pain Specialists — Chicago, Illinois, United States

• Research Site — Leeds, United Kingdom

• Charité hospital — Berlin, State of Berlin, Germany

• Joey & Toby Tanenbaum Gamma Knife Centre, Toronto Western Hospital — Toronto, Ontario, Canada

• University of Pittsburgh School of Medicine — Pittsburgh, Pennsylvania, United States

• Jefferson Headache Center — Philadelphia, Pennsylvania, United States

Not specified

• Sheba Medical Center — Tel Litwinsky, Israel