In this Tuesday, July 23, 2002, file photo, a doctor holds the medication Zyban in Kansas City, Kan. According to industry-funded research mandated by U.S. and European regulators and released on Monday April 9, 2018, Chantix and Zyban, two heavily promoted smoking-cessation drugs, are as safe for the heart as nicotine patches and dummy pills. (AP Photo/Ed Zurga)
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