Brain Diseases, Metabolic, Inborn

• University of Florida Clinical Research Center — Gainesville, Florida, United States

• Boston Children's Hospital — Boston, Massachusetts, United States
• Children's Hospital of Pittsburgh of UPMC — Pittsburgh, Pennsylvania, United States
• Vanderbilt University Medical Center — Nashville, Tennessee, United States
• PRA Health Sciences — Salt Lake City, Utah, United States

• Parexel — Brooklyn, Maryland, United States

• Universitätsklinikum für Neurologie — Graz, Austria
• Department of Neurology, University Hospital Sestre Milosrdnice — Zagreb, Croatia
• Hopital Neurologique de Lyon, Service d'urgences Neurovasculaires — Lyon, France
• Department of Neurology, S. Khechinashvili University clinic of Tbilisi state medical university — Tbilisi, Georgia

Not specified

• Childrens Hospital and Institute of Child Health, Ferozepur Road — Lahore, Pakistan

• Childrens Hospital and Institute of Child Health, Ferozepur Road — Lahore, Pakistan

• Universitätsklinikum für Neurologie — Graz, Austria
• Department of Neurology, Universitaetsklinik fuer Neurologie Innsbruck — Innsbruck, Austria
• Wagner-Jauregg Linz, Department of Neurology — Linz, Austria
• Christian-Doppler-Klinik, Department für medizin. Studien — Salzburg, Austria

• Juan Fernandez Hospital, Department of Neurology — Buenos Aires, Argentina
• Unidad Renal Corrientes SRL, Medicina Interna Nefrólogo — Corrientes, Argentina
• UZA - University Ziekenhuis Antwerpen) — Edegem, Belgium
• University Hospital "Sestre Milosrdnice" Department of neuroimmunology and neurogenetic — Zagreb, Croatia

• Scientia Clinical Research Limited — Randwick, New South Wales, Australia