1. Infectious Disease Research ProgramCenter for Bone Marrow Transplantation Department of Pediatric Hematology and OncologyChildren's University Hospital Münster Münster Germany
2. 2nd Pediatric DepartmentAristotle University of ThessalonikiAHEPA Hospital Thessaloniki Greece
3. Department of NeurosurgeryUniversity Hospital Münster Münster Germany
4. Institute of Clinical RadiologyUniversity Hospital Münster Münster Germany
5. Institute of Medical MicrobiologyUniversity Hospital Münster Münster Germany