Multiple sclerosis in LRRK2 G2019S Parkinson's disease and isolated nigral degeneration in a homozygous variant carrier. - Wise A; Ortega RA; Raymond D; Cervera A; Thorn E; Leaver K; Russell DS; Bressman SB; Crary JF; Saunders-Pullman R (Frontiers in neurology, 2024)