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The relation between frequency of E-cigarette use and frequency and intensity of cigarette smoking among south Korean adolescents

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The decrease in the mass of the ENDS reservoir is one measure of the Total Particulate Matter (TPM) generated by the ENDS via aerosolization while the increase in the mass of the filter pad is a measure of the TPM delivered to the user over the same time interval

My trigger was the fear of death and the rising cost of healthcare, he said

In real homes, I tell people to think in terms of load, not just room size: A guest room where someone smoked once is a lighter cleanup problem

However, comparing these percentages without considering the actual numbers they represent could give rise to incorrect perceptions