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He KB, Duan FK, Ma YL, Yang FM, Zhang Q, Yu XC, Cadle S, Chan T, Yan Y, Mulawa P. Concentration Level of Fine Airborne Lead in Beijing, People?s Republic of China. Bulletin of Environmental Contamination and Toxicology. 2004 Feb 01;72(2):233–9. doi: 10.1007/s00128-003-9022-7. |