Mahieu, P., Hassoun, A., Vanbinst, R., Lauwerys, R., & Deheneffe, Y. (1982). Severe and Prolonged Poisoning By Fenthion - Significance of the Determination of the Anti-cholinesterase Capacity of Plasma. Journal of Toxicology. Clinical Toxicology, 19(5), 425-432. https://doi.org/10.3109/15563658208992497 (Original work published 1982)