[1] LMU Hosp Munich Grosshadern, Dept Internal Med Hematopoiet Stem Cell Transplan, Munich, Germany
[2] Ludwig Maximilians Univ Munchen, Dr von Hauner Childrens Hosp, Munich, Germany
[3] Klinikum Augsburg, Dept Internal Med 2, Augsburg, Germany
[4] Klinikum Schwabing, Dept Internal Med 1, Munich, Germany
[5] Univ Frankfurt Klinikum, Dept Internal Med 1, Frankfurt, Germany