1. Interventional Neuroradiology/Endovascular Neurosurgery, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
2. Interventional Neuroradiology, Department of Radiology, Clinical Hospital Center “Sestre Milosrdnice,” Zagreb, Croatia
3. Interventional Neuroradiology, Hospital Español de Mendoza, Mendoza, Argentina
4. Interventional Neuroradiology, Angioteam-Angiosur, Medellín, Colombia
5. Department of Neurology, Neurosurgery and Radiology, University of Iowa Carver College of Medicine, Iowa, USA
6. Neurosurgery Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain