Yule, W., Lansdown, R., Millar, I.B. and Urbanowicz, M.-A. The relationship between blood lead concentrations, intelligence and attainment in a school population: a pilot study. ###>Yule, W., Lansdown, R., Millar, I.B. et Urbanowicz, M.-A. The relationship between blood lead concentrations, intelligence and attainment in a school population: a pilot study.