For example, Stan Glantz argued against electronic cigarettes in a Scientific American , claiming that: "We’ve found very high levels of dual use [traditional cigarettes along with e-cigarette use]. Very few people have switched away from cigarettes or managed to use them as a bridge to eventually go off cigarettes."

(See: Brown J, Beard E, Kotz D, Michie S, West R. Real-world effectiveness of e-cigarettes when used to aid smoking cessation: a cross-sectional population study. Addiction. .)

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