[1] Hannover Med Sch, Dept Neurol, Hannover, Germany
[2] Univ Hosp, Dept Neurol, Bochum, Germany
[3] Hannover Med Sch, Paediat Pulmonol Allergy & Neonatol, Hannover, Germany
[4] Hosp St Georg, Paediat Rheumatol Immunol & Infectiol, Leipzig, Germany
[5] Mannheimer Onkol Praxis, Mannheim, Germany
[6] German Rheumatism Res Ctr, Epidemiol, Berlin, Germany
[7] Tech Univ, Inst Clin Pharmacol, Fac Med, Dresden, Germany
[8] PIOH Praxis Internist Onkol, Hamatol, Cologne, Germany
[9] Baxalta, Dept Med, Oberschleissheim, Germany
[10] Ruhr Univ, St Josef Hosp, Dept Neurol, Wurzburg, Germany