1. From the Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden (Anna Falk Delgado); Department of Neuroradiology, Karolinska University Hospital, Neurocentrum R1, Karolinska Vägen, 17176 Solna, Stockholm, Sweden (Anna Falk Delgado); Departments of Diagnostic Radiology (M.N.) and Clinical Sciences (D.v.W.), Faculty of Medicine, Lund University, Lund, Sweden; and Department of Surgical Sciences, Uppsala University, Uppsala, Sweden (Alberto Falk Delgado).