Infantile Spasms with Basal Ganglia MRI Hypersignal May Reveal Mitochondrial Disorder Due to T8993G MT DNA Mutation - Desguerre, I; Pinton, F; Nabbout, R; Moutard, M L; N'Guyen, S; Marsac, C; Ponsot, G; Dulac, O (Neuropediatrics, 2003)