Johansson S, Ytterberg C, Claesson IM. et al. High concurrent presence of disability in multiple sclerosis: associations with perceived health. / Neurol. 2007:254:767-773.
Johansson S, Ytterberg C, Claesson IM. et al. High concurrent presence of disability in multiple sclerosis: associations withperceived health. / Neurol. 2007:254:767-773.