1. Department of Neurosurgery, Brodno Masovian Hospital, Warsaw, Poland
2. Department of Neurosurgery, Brodno Masovian Hospital, Warsaw, Poland, Interventional Neuro Center, Brodno Masovian Hospital, Warsaw, Poland
3. Interventional Neuro Center, Brodno Masovian Hospital, Warsaw, Poland, Neurosurgical Clinic, Ohio State University, US, Neurosurgical Clinic, University of California, San Francisco, US
4. Gamma Knife Centre, Warsaw, Poland
5. Department of Neurosurgery, Brodno Masovian Hospital, Warsaw, Poland, Gamma Knife Centre, Warsaw, Poland, Department of Neurosurgery, Postgraduate Medical Centre, Warsaw, Poland, Interventional Neuro Center, Brodno Masovian Hospital, Warsaw, Poland