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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Regul Toxicol Pharmacol. 2019 Oct 17;109:104500. doi: 10.1016/j.yrtph.2019.104500

Figure 2.

Figure 2.

Effects of resistance value (0.25 Ω and 1.5 Ω) on formaldehyde, acetaldehyde and acrolein levels in vapors released by eL-N (without nicotine) (A) and eL+N (with nicotine) (B). Data represent mean ± SD of three independent replicates. Different letters (a-b) for each aldehyde denote statistically different means (Tukey’s test; p<0.05) related to the resistance values; different letters (x-z) for each resistance value denote statistically different means (Tukey’s test; p<0.05) related to carbonyls.