Mitochondrial Encephalomyopathy, Lactic Acidosis, Stroke-Like Episodes (MELAS) :Clinical, Radiological, Pathol & Genetic Observ
Ann Neurol 34:25-31, Koo,B.,et al, 1993
Hallervorden-Spatz Syndrome and Brain Iron Metabolism
Arch Neurol 48:1285-1293, Swaiman,K.F., 1991