when were cigarettes considered healthy Smoking: a 100-Year Story That Doesn't End Here Back in the 1940s and

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The subpopulation of cancer stem-like cells was implicated in tumor initiation, generation of heterogeneous tumor populations, metastasis, dormancy, and drug resistance [23]

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Peeking around the corner, you see the two raiders just as they move in to the corridor from the service entrance

This regression-based difference-in-differences design controlled for state fixed effects to ensure no bias would be introduced by time-invariant state-level characteristics that could increase the propensity to implement smoke-free legislation and affect infant and child health, as well as year fixed effects to account for bias from national trends in infant and child health