Early Upper Limb Motor Impairment in Multiple Sclerosis Across EDSS Levels: A Case-Control Study.

Blázquez-Fernández A, Marcos-Antón S, Estrada-Barranco C, Martín-Casas P, Ortiz-Gutiérrez R M, Jiménez-Antona C, Laguarta-Val S, Cano-de-la-Cuerda R