[1] Mannheimer Onkol Praxis, Mannheim, Germany
[2] Hannover Med Sch, Hannover, Germany
[3] Ruhr Univ Bochum, St Josef Hosp, Dept Neurol, Bochum, Germany
[4] Hosp St Georg, Leipzig, Germany
[5] Tech Univ Dresden, Fac Med, Inst Clin Pharmacol, D-01062 Dresden, Germany
[6] German Rheumatism Res Ctr, Berlin, Germany
[7] Charite, Berlin, Germany
[8] Hannover Med Sch, Dept Neurol, Hannover, Germany
[9] Praxis Internist Onkol, PIOH, Cologne, Germany