%0 Journal Article %A L Wolman %A S Roy %T The substantia nigra in Parkinsonism. %D 1969 %R 10.1136/jcp.22.4.507-d %J Journal of Clinical Pathology %P 507-508 %V 22 %N 4 %U https://jcp.bmj.com/content/jclinpath/22/4/507.4.full.pdf