john middleton tobacco company TINS (2) No. 56 & CLUB MIXTURE Middleton Tobacco | eBay

Indeed, currently available data appear insufficient to conclude with certainty that e-cigarettes are an effective and safe tool to help smokers wean themselves from smoked tobacco products

I meant the first (which is more common in epidemiology), but if we want the second, its about 25 / 6, which is a little more than 4

3 shows a cross-section of a cigarette comprising a standard rectangular profile king-size filter (IC), having a constant cross-section, coupled with a demi-size tobacco rod via a bell shaped outer moulding (7)

According to the data currently available, the fear that vaping leads to smoking therefore seems totally unfounded