1. Berlin A, Lauwerys R, Buchet JP, Roels H, DelCastilho P, Smeets J (1975) In: Proceedings of international symposium on recent advances in the assessment of the health effects of environmental pollution, CEC-EPA-WHO, Paris 1974, pp 2185–2195
2. Bruaux P, Svartengren M (eds) (1985) Assessment of human exposure to lead: Comparison between Belgium, Malta, Mexico and Sweden. Prepared for UNEP/WHO. Department of Environmental Hygiene, Karolinska Institute, Stockholm
3. de Haas EJM, de Wolff FA (1981) Clin Chem 27:205
4. Elinder C-G, Friberg L, Lind B, Jawaid M (1983) Environ Res 30:233–253
5. Elinder C-G, Friberg L, Lind B, Nilsson B, Svartengren M, Övermark I (1986) Scand J Work Environ Health 12:114–120