It makes you think more about smoking not less
less than 2) showed no significant correlation between age ( P = 0.063), walking exercise ( P = 0.609), BMI ( P = 0.827), diarrhea ( P = 0.298), constipation ( P = 0.648), history of chronic diseases ( P = 0.874), history of gastrointestinal ( P = 0.980) or gynecological surgeries ( P = 0.293) with high BBPS
Evidence from Michigan Cigarette Tax Policy," University of Michigan, 2007
A challenge of observational studies is potential confounding, because without randomization, certain factors (confounders) may be systematically and unequally distributed across e-cigarette users and non-users
Nick Cigarette ads featuring the kid-friendly figure of Santa Claus have been numerous, including this 1920 ad for Murad