About the Authors

Robert Schwarzenberg

Affiliation Department of Mathematics and Computer Science, University of Marburg, Marburg, Germany

Bernd Freisleben

Affiliation Department of Mathematics and Computer Science, University of Marburg, Marburg, Germany

Christopher Nimsky

Affiliation Department of Neurosurgery, University Hospital of Marburg, Marburg, Germany

Jan Egger

egger@med.uni-marburg.de

Affiliations Department of Mathematics and Computer Science, University of Marburg, Marburg, Germany, Department of Neurosurgery, University Hospital of Marburg, Marburg, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RS JE. Performed the experiments: RS. Analyzed the data: RS JE. Contributed reagents/materials/analysis tools: RS BF CN JE. Wrote the paper: RS JE BF.