[1] IRCCS Casa Sollievo Sofferenza Rome CSS Mendel, San Giovanni Rotondo, Italy
[2] Magna Graecia Univ Catanzaro, Dept Neuroradiol, Catanzaro, Italy
[3] IRCCS Ist Auxol Italiano, Dept Neurol & Lab Neurosci, Milan, Italy
[4] Inst Neurociencias Buenos Aires INEBA & Neurol, Dept Movement Disorders, Buenos Aires, DF, Argentina
[5] Royal Hosp, Minist Hlth, Natl Genet Ctr, Muscat, Oman
[6] Italian League Res Huntington & Related Dis Fdn L, Rome, Italy
[7] Columbia Univ, New York Brain Bank, New York, NY USA
[8] Univ Klin Ulm, Abt Neurol, Ulm, Germany