Lennox Gastaut Syndrome

• Arkansas Children's Hospital — Little Rock, Arkansas, United States
• UC Irvine Medical Center — Orange, California, United States
• UCI Center for Innovative Health Therapies — Orange, California, United States
• Nemours Children's Health — Wilmington, Delaware, United States

• Great Ormond Street Hospital NHS Foundation Trust — London, United Kingdom

• The Prince of Wales Hospital — Randwick, New South Wales, Australia
• Royal Brisbane and Womans Hospital — Herston, Queensland, Australia
• St Vincent's Hospital Melbourne — Fitzroy, Victoria, Australia
• Austin Health — Heidelberg, Victoria, Australia

• Stanford University Hospital — Palo Alto, California, United States
• University of Florida Health Science Center — Jacksonville, Florida, United States
• AdventHealth — Orlando, Florida, United States
• Pediatric Epilepsy and Neurology Specialists — Tampa, Florida, United States

• Ann & Robert H. Lurie Children's Hospital of Chicago — Chicago, Illinois, United States
• C.S. Mott Children's Hospital — Ann Arbor, Michigan, United States
• St. Louis Children's Hospital — St Louis, Missouri, United States
• Nationwide Children's — Columbus, Ohio, United States

• Arkansas Children's Hospital - PIN — Little Rock, Arkansas, United States
• David Geffen School of Medicine at UCLA — Los Angeles, California, United States
• The Stanford Division of Child Neurology — Palo Alto, California, United States
• UCSF Children's Hospital — San Francisco, California, United States

• University of Chicago — Chicago, Illinois, United States

• Louisiana State University Health Sciences Center New Orleans — New Orleans, Louisiana, United States

Not specified

• The Hospital for Sick Children — Toronto, Ontario, Canada