1. PIOH - Praxis internistischer Onkologie und Hämatologie; Köln Germany
2. Paediatric Rheumatology, Immunology and Infectiology; Hospital St. Georg; Leipzig Germany
3. Epidemiology unit; German Rheumatism Research Centre; A Leibniz institute; Berlin Germany
4. Paediatric Pulmonology, Allergy and Neonatology; Hanover Medical School; Hanover Germany
5. Medical Faculty; Institute for Clinical Pharmacology; Technical University Dresden; Dresden Germany
6. Department of Neurology; University Hospital Würzburg; Würzburg Germany
7. Department of Neurology; Hanover Medical School; Hanover Germany
8. Department for Neurology; St. Josef-Hospital; Ruhr University Bochum; Bochum Germany
9. Mannheimer Onkologie Praxis; Mannheim Germany