Lead Contamination in Cocoa and Cocoa Products: Isotopic Evidence of Global Contamination
Charley W. Rankin, Jerome O. Nriagu, Jugdeep K. Aggarwal, Toyin A. Arowolo, Kola Adebayo, and A. Russell Flegal
Environ Health Perspect. 2005 October; 113(10): 1344–1348. Published online 2005 May 26. doi: 10.1289/ehp.8009.PMCID: PMC1281277