Bernard, A., Goret, A., Buchet, J.-P., Roels, H., & Lauwerys, R. (1980). Significance of Cadmium Levels in Blood and Urine During Long-term Exposure of Rats To Cadmium. Journal of Toxicology and Environmental Health, 6(1), 175-184. https://doi.org/10.1080/15287398009529840 (Original work published 1980)