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The smoke generation and collection procedures involved in the routine smoke analyses are designed primarily to address adequate detection and quantification limits, suitable reproducibility and repeatability for a wide range of smoke constituents (from mg to ng per cigarette)

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Over the past thirty years, the age-adjusted mortality rate correlated with COPD has grown at an alarming rate of 71% despite readily available pharmacological treatments [3]

3), with west states having higher prevalence compared to south states, in particular five states, namely Arizona, California, Colorado, the District of Columbia, and Nevada, had high rates of both current hookah use ( 5%) and ever use ( 15%) [45]

The CO level is an important indicator for ventilation measures and the determined fine dust particle sizes include not only fine dust (e.g