[1] Univ Hosp Children & Adolescents, Neuropaediat, Ernst Heydemann Str 8, D-18057 Rostock, Germany
[2] Univ Leipzig, Inst Pharm, Clin Pharm, Med Fac, Bruederstr 32, D-04103 Leipzig, Germany
[3] Univ Leipzig, Drug Safety Ctr, Bruederstr 32, D-04103 Leipzig, Germany
[4] Leipzig Univ Hosp, Bruederstr 32, D-04103 Leipzig, Germany
[5] Univ Med Rostock, Sekt Neuropadiatrie, Ernst Heydemann Str 8, D-18057 Rostock, Germany