L-dopa-responsive infantile hypokinetic rigid parkinsonism due to tyrosine hydroxylase deficiency. - Rijk-van Andel,J.F.; Gabreëls,F.JM.; Geurtz,B.; Steenbergen-Spanjers,G.CH.; van den Heuvel,L.PWJ.; Smeitink,J.AM. (Neurology, 2000)