[1] Univ Vita Salute San Raffaele, Milan, Italy
[2] IRCCS San Raffaele Hosp, Dept Neuroradiol, Milan, Italy
[3] IRCCS San Raffaele Hosp, CERMAC, Milan, Italy
[4] IRCCS San Raffaele Hosp, Dept Neurosurg & Gamma Knife Radiosurg, Milan, Italy
[5] IRCCS San Raffaele Hosp, Dept Neurol, Milan, Italy