The Effects of Filter Ventilation and Expanded Tobacco on the Tar, Nicotine and Carbon Monoxide Yields from Cigarettes Sold in Australia.

While pairwise comparisons between each color group did not reach statistical significance, there was a trend for the mean tar and nicotine yields ( Figure 3 a,b) to increase from gold to blue to red brand variants when measured using both ISO and HCI protocols, and this was also apparent for CO when measured using the ISO but not the HCI protocol ( Figure 3 c). 3.4.

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