1. Kristof Thevissen is a Fellow in Rheumatology at the Maastricht University Medical Center (The Netherlands). In this function, he is involved in research in the field of spondyloarthritis. He has a personal interest in systemic inflammatory diseases.
2. Astrid van Tubergen is a Rheumatologist at the Maastricht University Medical Center. She is mainly involved in outcome research and epidemiological research in the field of spondyloarthritis.
3. Robert Landewé is Professor in Rheumatology at the Academic Medical Center/University of Amsterdam (The Netherlands), and a Consultant in Rheumatology at the Atrium Medical Center Heerlen (The Netherlands). He is involved in epidemiological research in the field of rheumatoid arthritis and spondyloarthritis and has experience in the design and analysis of clinical trials and an interest in medical statistics.