1. Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, 3584 CM Utrecht, The Netherlands
2. Digestive Medicine Department, Ciberehd & IISLaFe, Hospital U. i P. La Fe, University of Valencia, 46010 Valenci, Spain
3. Second Department of Neurology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
4. Brain and Mind Centre and School of Medical Sciences (Neuroscience), The University of Sydney, Sydney, NSW 2006, Australia
5. Department of Radiology, Charles University and General University Hospital, 128 08 Prague, Czech Republic
6. Department of Neurology and Centre of Clinical Neuroscience, First Faculty of Medicine, Charles University and General University Hospital, 128 08 Prague, Czech Republic
7. Rare Neurodegenerative Diseases Lab, Centro de Investigacion Principe Felipe, 46012 Valencia, Spain
8. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 1800, USA
9. Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 1800, USA
10. Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of California Davis, Sacramento, CA 59817, USA
11. German Society for Wilson disease Patients (Morbus Wilson e.V.), Zehlendorfer Damm 119, D-14532 Kleinnachnow, Germany
12. Private Practice for Internal Medicine, Beethovenstraße 2, D-76530 Baden-Baden, Germany
13. Dutch Society for Liver Disease Patients (Nederlandse Leverpatienten Vereniging), 3828 NS Hoogland, The Netherlands
14. Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH Aachen University Hospital Aachen, D-52074 Aachen, Germany