Evolution of sporadic olivopontocerebellar atrophy into multiple system atrophy

Little, Roderick J; Gilman, Sid; Johanns, Jewel R; Heumann, Mary L; Kluin, Karen J; Junck, Larry; Koeppe, Robert A; An, Hyonggin. (2000). Evolution of sporadic olivopontocerebellar atrophy into multiple system atrophy. Neurology. 55(4), 527-532.