| http://www.w3.org/ns/prov#value | - There are other dangers associated with e-cigarette vapor as well, Dr. Winickoff says. ???The exhaled nicotine vapor settles on surfaces in the room like furniture and produces tobacco-specific nitrosamines???some of the most carcinogenic substances known.??? Nitrosamines are chemical compounds found in tobacco, foods and other products that are known to contribute to cancer.
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