1. Developmental Biochemistry University Medical Center Goettingen Goettingen Germany
2. Hematology and Oncology University Medical Center Goettingen Goettingen Germany
3. Molecular Oncology University Medical Center Goettingen Goettingen Germany
4. Electron Microscopy Core Unit, Department of Neurogenetics Max Planck Institute of Experimental Medicine Göttingen Germany
5. Institute of Clinical Chemistry University Medical Center Göttingen Göttingen Germany
6. Bioanalytical Mass Spectrometry Group Max Planck Institute for Biophysical Chemistry Göttingen Germany
7. Department of Medicine Health and Medical University Potsdam Germany