Institution: | (1) Department of Neurosurgery, Medical University of Bialystok, Bialystok, Poland;(2) Department of Radiology, Division of Neuroradiology, University of Pennsylvania, 3600 Market Street, Science Building, Suite 370, Philadelphia, PA 19104, USA;(3) Department of Radiology, The Medical University of Gdańsk, Gdańsk, Poland |