Myelin imaging measures as predictors of cognitive impairment in MS patients: A hybrid PET-MRI study - Campanholo, K. R.; Pitombeira, M. S.; Rimkus, Carolina de Medeiros; Mendes, M. F.; Apostolos-Pereira, S. L.; Busatto Filho, Geraldo; Callegaro, D.; Buchpiguel, Carlos Alberto; Duran, F. L. S.; Faria, D. De Paula (Multiple sclerosis and related disorders, 2022)