PSP is classified into several types, including PSP-Richardson's syndrome ("PSP-RS") and PSP-parkinsonism ("PSP-P"). Compared to other types of PSP, the PSP-RS type shows a greater accumulation of tau ...
but it is estimated that approximately 4.9 per 100,000 people are affected with corticobasal syndrome in the USA and 1.7 per 100,00 in Japan. In general, PSP progresses steadily with a median ...