1. Brizzee, K. R., Cancilla, P. A., Sherwood, N., Timiras, P. S.: The amount and distribution of pigments in neurons and glia of the cerebral cortex. Autofluorescent and ultrastructural studies. J. Geront.24, 127?135 (1969).
2. Cammermeyer, J.: The postmortem origin and mechanism of neuronal hyperchromatosis and nuclear pyknosis. Exp. Neurol.2, 379?405 (1960).
3. Chalkley, H. W.: Method for quantitative morphological analysis of tissues. J. Nat. Cancer Inst.4, 47 (1943).
4. Einarson, L., Telford, I. R.: Structural changes in the nervous system of monkeys deprived of vitamin E. Anatomiske skrifter. 3, Nr. 1, Universitetsforlaget I Aarhus (1960 a).
5. ??: Effect of vitamin-E deficiency on the central nervous system in various laboratory animals. Biol. Skr. Dan. Vid. Selsk.11 (2), 1?81 (1960 b).