1. Friberg L, Kjellström T, Nordberg G, Piscator M. Cadmium. In: Friberg L, et al., editors. Handbook on the Toxicology of Metals. Amsterdam: Elsevier, 1979:355–381.
2. Cadmium chemical pneumonitis;Barnhart;Chest,1984
3. Cadmium encephalopathy: a report with elemental analysis and pathological findings;Provias;Acta Neuropathol (Berlin),1994
4. Parkinson's disease;Marsden;J Neurol Neurosurg Psychiatry,1994
5. Schwab RS, England Jr AC. Parkinson syndromes due to various specific causes. In: Vinken PJ, Bruyn GW, editors. Handbook of Clinical Neurology. Vol. 6. Amsterdam: North-Holland, 1969;6(9):227–247.