1. Kings College Hospital; Department of Rheumatology; Denmark Hill London UK
2. Queen Elizabeth Hospital; Department of Neurology; Edgbaston Birmingham UK B15 2TH
3. University Hospital Utrecht; Neurology; Heidelberglaan 100 3584 CX Utrecht Netherlands
4. Cardiff University School of Medicine; Section of Rheumatology, Division of Infection and Immunity; Tenovus Building Heath Park Cardiff UK CF14 4XN