W W Yen

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Under the light microscope, large and small types of spinal ganglion cells can be seen in the mouse. Among those of the small type bipolar cells are observed. By electron microscopy, the cells of the large type have a low electron density and those of the small type a high electron density. Bipolar cells continue to be observed among the latter. The cells(More)
Comparative studies were carried out under light, fluorescence- and electron-microscopic observations between young, adult and aged groups of albino rats with the following results: the neuronal packing density of locus ceruleus decreases with advanced age. In addition to the senescent loss of nerve cells, the surviving ones showed some shrinkage of(More)
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