There are a variety of harmful substances beyond just nicotine, including carcinogens like formaldehyde and acrolein, heavy metals like lead, and ultrafine particles that can damage the lungs contained in e-cigarettes and the amounts vary from product to product, said Dr
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For the purpose of randomization following the 2-week run-in with the 21-mg nicotine patch, quit status will be determined by participants self-reported 7-day point prevalence abstinence (PPA), defined as no smoking, not even a puff, for the past 7 days
I mean, its the only situation that I know where you could grant money to do a study, when you come in telling them what the study is going to prove, not what youre going to look for