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LaVelle, A. : Nuclear Changes and Development of Nissl Substance in the Cerebral Cortex of Fetal Guinea Pigs, J. Comp. Nevrol . 94: 453-474, 1951.
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LaVelle, A. , Liu, C., and LaVelle, F.W.: Acid Phosphatase Activity as Related to Nucleic Acid Sites in the Nerve Cell, Anat. Rec. 119: 305-323, 1954.
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Crawford, G.N.C. , and Barer, R.: The Action of Formaldehyde on Living Cells as Studied by Phase Contrast Microscopy, Quart. J. Micros. Sc. 92: 403-452, 1951.
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