1. Alessio L, Bertelli G (1983) Examples of biological indicators of metals in occupational health. In: Facchetti S (ed) Analytical techniques for heavy metals in biological fluids. Elsevier for the Commission of the European Communities, Amsterdam Oxford New York, pp 41?63
2. Buratti M, Calzaferri G, Caravelli G, Colombi A (1983) Aluminium assay in biological fluids [in Italian]. Med Lav 74:70?72
3. CEC ? Commission of European Communities (1982) International Workshop on the rôle of biological monitoring in prevention of aluminium toxicity in man. Aluminium analysis in biological fluids. Luxemburg 5?7 July 1982 ? Proceedings in press
4. Cornelis R (1982) Variability in reported plasma Al-concentrations. In: CEC, Luxemburg
5. Cresser MS (1978) Solvent extraction in flame spectroscopic analysis. Butterworths Press, London