The S-Factor, a New Measure of Disease Severity in Spinocerebellar Ataxia: Findings and Implications

Louisa P. Selvadurai, Susan Perlman, George Wilmot, S. H. Subramony, Christopher M. Gómez, Tetsuo Ashizawa, Henry L. Paulson, Chiadi U. Onyike, Liana S. Rosenthal, Haris I. Sair, Sheng‐Han Kuo, Eva‐Maria Ratai, Theresa A. Zesiewicz, Khalaf Bushara, Gülin Öz, Cameron Dietiker, Michael D. Geschwind, Alexandra Nelson, Puneet Opal, Talene A. Yacoubian, Peg Nopoulos, Vikram G. Shakkottai, Karla P. Figueroa, Stefan M. Pulst, Peter Morrison, Jeremy D. Schmahmann