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For acetaldehyde [median (1 st quartile 3 rd quartile)], when using low nicotine concentrations without adjusting power (6F) the CRI was 2.7 10 6 (6.3 10 7 9.0 10 6 )
However, as discussed below, this finding is most plausibly explained by healthy switcher bias, residual confounding by age, body mass index, and other unmeasured factors, and the variable and uncontrollable effects of prior tobacco exposure in the vaping group, rather than by any protective effect of e-cigarette use
Students will also examine how they may be exposed to ionizing radiation, evaluate the benefits and risks associated with radiation exposure, and identify situations in which they may choose to control or limit their exposure to ionizing radiation
that is, the backstory as told by Lone Gunman Frohike (Tom Braidwood) is diegetically positioned as being either erroneous or fantastical
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