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For each smoking treatment, mice were transferred into a rounded 18-L plastic container connected to a 50-mL syringe and one lit cigarette via a three-way tap

Nicotine, in addition to being highly addictive, can damage the heart and other vital organs

They've been on sale in the British market since February 2000 and are billed as the world's most expensive cigarette

Secondhand smoke wafting from one residence to another through walls, air ducts, cracked floors, plumbing and electrical systems, patios, balconies and other points of entry is a common problem across the country, said Rob Cunningham, a senior policy analyst at the Canadian Cancer Society

Morrison, professor at the University of Tennessee who has published research on tobacco advertising in youth-oriented magazines

"Tretinoin is the most potent retinoid but is only available on prescription