Gertraud Krähn-Senftleben, Blaubeuren, Baden-Württemberg, Germany
Clarissa Allmacher, Hersbruck, Bayern, Germany
Ildiko Sugar-Bunk, Krumbach, Bayern, Germany
University of Florida - Clinical Research Center, Gainesville, Florida, United States
University of Iowa Children's Hospital, Iowa City, Iowa, United States
University of California, Los Angeles Neurology Clinic, Los Angeles, California, United States
University of Iowa Children's Hospital, Iowa City, Iowa, United States
University of California, Los Angeles Neurology Clinic, Los Angeles, California, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Research Site, Wirral, United Kingdom
Research Site, Thessaloniki, Greece
Research Site, Zürich, Switzerland
Research Site, Wauwatosa, Wisconsin, United States