1. Hamburger Zentrum für Kinder- und Jugendrheumatologie, Centre for Treatment of Scleroderma and Uveitis in Childhood and Adolescence An der Schön Klinik Hamburg Eilbek, Hamburg, Germany
2. Teaching Unit of the Asklepios Campus of the Semmelweis Medical School, Budapest, Hungary
3. Moorfields Eye Hospital, NHS Foundation Trust, London, UK
4. Great Ormond Street Hospital For Children, NHS Foundation Trust, London, UK