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Braun, H.E., Frank, R. & Miller, L.A. Residues of cypermethrin in milk from cows wearing impregnated ear tags. Bull. Environ. Contam. Toxicol. 35, 61–64 (1985). https://doi.org/10.1007/BF01636480
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DOI: https://doi.org/10.1007/BF01636480