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Hankin, L., Heichel, G.H. & Botsford, R.A. Lead content of printed polyethylene food bags. Bull. Environ. Contam. Toxicol. 12, 645–648 (1974). https://doi.org/10.1007/BF01685906
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DOI: https://doi.org/10.1007/BF01685906