The outcome of the movement disorder in methcathinone abusers: clinical, MRI and manganesemia changes, and neuropathology. - Stepens A; Groma V; Skuja S; Platkājis A; Aldiņš P; Ekšteina I; Mārtiņsone I; Bricis R; Donaghy M (European journal of neurology, 2014)