1. Department of Neurosurgery, Universitätsklinikum Aachen, RWTH Aachen University, Aachen, Germany
2. Department of Diagnostic and Interventional Neuroradiology, Universitätsklinikum Aachen, RWTH Aachen University, Aachen, Germany
3. Department of Intensive Care Medicine, Universitätsklinikum Aachen, RWTH Aachen University, Aachen, Germany