The Clinical and Ploynucleotide Repeat Expansion Analysis of ATXN2, NOP56, AR and C9orf72 in Patients With ALS From Mainland China. Alzforum, 27 May 2022 Hou X, Li W, Liu P, Liu Z, Yuan Y, Ni J, Shen L, Tang B, Wang J. Front Neurol. 2022;13:811202.