Prevalence, Clinical Profiles, and Prognosis of Stiff-Person Syndrome in a Japanese Nationwide Survey.

Matsui N, Tanaka K, Ishida M, Yamamoto Y, Matsubara Y, Saika R, Iizuka T, Nakamura K, Kuriyama N, Matsui M, Arisawa K, Nakamura Y, Kaji R, Kuwabara S, Izumi Y; Japanese SPS Study.