Integration of Volumetric, Iron, and Neuromelanin Magnetic Resonance Imaging Measures Effectively Differentiates Parkinson's Disease from Multiple System Atrophy. - Liu Y; Xiao B; Huang P; Li Y; Wang X; Zhang Y; Jin Z; Liu F; Haacke EM; Chen S; He N; Yan F (Movement disorders : official journal of the Movement Disorder Society, 2026)