BROLA, W.; FUDALA, M. Fatigue as a problem in multiple sclerosis. European Journal of Clinical and Experimental Medicine, [S. l.], v. 8, n. 2, p. 237–243, 2010. Disponível em: https://journals.ur.edu.pl/ejcem/article/view/13080. Acesso em: 31 may. 2026.