1. Aoki S (1989) Igaku Toukei Kaiseki: reference manual. Igaku Shoin, Tokyo (in Japanese)
2. Bremner I. Breattie JH (1990) Metallothionein and the trace minerals. Annu Rev Nutr 10: 63–83
3. Chang CC, Lauwerys R, Bernard A, Roels H, Buchet JP, Garvey JS (1980) Metallothionein in cadmium-exposed workers. Environ Res 23: 422–428
4. Chia KS, Ong CN, Ong HY, Endo G (1989) Renal tubular function of workers exposed to low levels of cadmium. Br J Ind Med 46: 165–170
5. Elinder C-G (1985) Normal values for cadmium in human tissues, blood, and urine in different countries. In: Friberg L et al. (eds) Cadmium and health: a toxicological and epidemiological appraisal, vol 1, exposure, dose, and metabolism. CRC Press, Boca Raton, pp 21–109