1. School for Mental Health and Neuroscience; Maastricht University Medical Center; Maastricht The Netherlands
2. Academic MS Center Limburg; Orbis Medical Center; Sittard The Netherlands
3. Department of Internal Medicine; Division of Clinical and Experimental Immunology; Maastricht University Medical Center; Maastricht The Netherlands
4. Central Diagnostic Laboratory; Maastricht University Medical Center; Maastricht The Netherlands
5. Department of Medical Psychology and Psychiatry; Orbis Medical Center; Sittard The Netherlands
6. Menzies Research Institute Tasmania; University of Tasmania; Hobart Tasmania Australia
7. Murdoch Childrens Research Institute; The University of Melbourne; Melbourne Victoria Australia