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Respiratory infections: The damaged airways make it easier for infections to take hold, leading to more frequent and severe respiratory illnesses, which can exacerbate symptoms

I just like to have my nicotine fix when I drink coffee and after a meal. E-cigarettes use a rechargeable battery to activate a heating coil that quickly heats nicotine suspended in a propylene glycol solution, which in some models is soaked into a soft fabric cartridge, until it vaporizes

In some cases, a child will experience recurring acute middle ear infections

Scholarship capacity refers to whether the study contributed to research workforce development, such as being undertaken as part of a higher degree (i.e., PhD, Masters, Honours) or involving mentorship of junior academics or clinicians by senior researchers