british american tobacco hong kong 1939 Cover to USA. B-A (China) 1922-44 British-American Tobacco Co. $1
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The margin of exposure values were calculated for individual exposure (Figure 1), population-based exposure calculated from prevalence data (Figure 2) and population-based exposure calculated from sewage analysis (Figure 3)
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B Biological pesticide References and Further Reading Bauernfeind, B
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