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But could similar packaging be required here

According to the CDC, COPD is often caused by cigarette smoking, and never smoking or quitting smoking is recommended to help prevent this disease

Under this law, there are strict rules about where and how cigarettes can be sold, as well as regulations on packaging and labelling

Moreover, in order to clarify the previously proposed methodological problems of abstainers misclassification, sick quitter hypothesis, and potentially confounding factors 17 , we categorized drinking status of ex-drinkers into regular drinker to avoid misclassifying the former drinkers as abstainers and controlled 15 confounders to minimize confounding