Maskrey, Vivienne, Blyth, Annie, Brown, Tracey J., Barton, Garry R., Notley, Caitlin, Aveyard, Paul, Holland, Richard, Bachmann, Max O., Sutton, Stephen, Leonardi-Bee, Jo, "Self‐help educational booklets for the prevention of smoking relapse following smoking cessation treatment: a randomized controlled trial", Addiction, 2015