1. Laboratories of Neuro-Oncology/Clinical and Cancer Proteomics, Department of Neurology, Erasmus MC, Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
2. Department of Neurosurgery, Erasmus MC, Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands
3. Department of Biochemistry, Radboud Institute for Molecular Life Sciences, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands