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Remember, nicotine is a powerful substance, and being careful with it is super important

Consumers inhale this aerosol into their lungs, which is commonly referred to as vaping. Vape pen hardware can introduce heavy metals into a cartridge in the vape pen containing e-liquid

Supplied with 50 x 0.6mm staples in U, V & W types

We conducted an a priori power analysis using G*Power Software for independent samples Students t-test 22 , assuming the group difference in mean change of the score is 2 (standard deviation 1.3) 7 and aiming to detect a significance level of 1% and statistical power of 90%, a total sample size of 30 participants (15 in each group) was needed