FILE - In this April 23, 2014 file photo, a man smokes an electronic cigarette in Chicago. San Francisco has approved a bill that bans the sale of flavored nicotine-laced liquid used in electronic cigarettes and flavored tobacco products. The San Francisco Board of Supervisors unanimously approved the ban on Tuesday, June 20, 2017. Supervisors say that nicotine masked in cotton candy, banana cream, mint and other flavors entices kids into a lifetime of addiction. (AP Photo/Nam Y. Huh, File)
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