1. Amatuzio, D. S., Stutzman, F. L., Vanderbilt, M. J., and Nesbitt, S. (1953). J. Clin. Invest., 32, 428.
2. Boyer, J., and Rodier, J. (1954). Rev. Neurol., 90, 13.
3. Burn, J. H., Finney, D. J., and Goodwin, L. G. (1950).
4. Fairhall, L. T. (1945). Physiol. Rev., 25, i82.
5. Chronic manganese poisoning in an ore-crushing mill;Flinn, R.H.; Neal, P.A.; Reinhart, W.H.; Dallavalle, J.M.; Fulton, W.B.; Dooley, A.E.;Public Health Bull,1940