Reply to: "Early neurological worsening in Wilson disease: The need for an evidence-based definition".

Address: Department of Internal Medicine IV, University Hospital Heidelberg, Heidelberg, Germany.; Department of Neurology, Rare Disease Reference Centre "Wilson's Disease and Other Copper-related Rare Diseases", Rothschild Foundation Hospital, Paris, France.; Department of Clinical and Experimental Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK; Department of Gastroenterology and Hepatology, Royal Surrey NHS Foundation Trust, Guildford, UK; Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London, UK.; Department of Internal Medicine, Salem Medical Center, Heidelberg, Germany. Electronic address: [email protected].