DOI: 10.1055/s-00000019

Fortschritte der Neurologie · Psychiatrie

References

Walter U, Wittstock M, Benecke R. et al.
Substantia nigra echogenicity is normal in non-extrapyramidal cerebral disorders but increased in Parkinson’s disease. 
J Neural Transm 2002; 109: 191-196  

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