1 Dept of Cardiovascular Medicine, John Paul II Hospital, Jagiellonian University in Kraków Medical College, Krakow, Poland.
2 Division of Cardiology, Vascular Medicine and Intervention Section, Massachusetts General Hospital, Boston, United States., Boston, United States.
3 Departments of Neurosurgery and Radiology, School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Jacobs Institute, Gates Vascular Institute Kaleida Health, Buffalo, New York, USA, Buffalo, United States.
4 University of Dundee, Chair of Neuroradiology, Department of Radiology, Ninewells Hospital, Dundee, Scotland, United Kingdom, Dundee, United Kingdom of Great Britain and Northern Ireland.