Sporadic Fatal Insomnia in Europe: Phenotypic Features and Diagnostic Challenges. - Abu-Rumeileh S; Redaelli V; Baiardi S; Mackenzie G; Windl O; Ritchie DL; Didato G; Hernandez-Vara J; Rossi M; Capellari S; Imperiale D; Rizzone MG; et al. (Annals of neurology, 2018)