Huntington Disease

• University of Alabama at Birmingham — Birmingham, Alabama, United States
• University of California — San Diego, California, United States
• Colorado Neurological Institute — Littleton, Colorado, United States
• University of South Florida — Tampa, Florida, United States

• The University of Texas Health Science Center at Houston — Houston, Texas, United States

• Annexon Investigational Site 02 — Birmingham, Alabama, United States
• Annexon Investigational Site 03 — Englewood, Colorado, United States
• Annexon Investigational Site 04 — Washington D.C., District of Columbia, United States
• Annexon Investigational Site 07 — Durham, North Carolina, United States

• UZ Leuven — Leuven, Vlaams-Brabant, Belgium

• Hôpital Marin de Hendaye — Hendaye, France

• UZ Leuven — Leuven, Belgium

• Dignity Health / St. Joseph's Hospital and Medical Center — Phoenix, Arizona, United States

• University Hospitals Cleveland Medical Center — Cleveland, Ohio, United States

• Hospital Universitario de Burgos — Burgos, Spain

Not specified