1. Department of Radiosurgery, Stereotactic Radiotherapy and General Oncology Clinic MIBS, Saint Petersburg, Russia;
2. Peter the Great St. Petersburg Polytechnic University, Saint Petersburg, Russia;
3. Oncology Pathology Department, Karolinska Institutet, Stockholm, Sweden;
4. Medical Radiation Physics, Stockholm University, Stockholm, Sweden;
5. Medical Radiation Sciences, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
6. Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland;
7. University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland;
8. Signal Processing Laboratory (LTS 5), Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland;