Photoaging smartphone app promoting poster campaign to reduce smoking prevalence in secondary schools: the Smokerface Randomized Trial: design and baseline characteristics

by Brinker, Titus J, Holzapfel, Julia, Baudson, Tanja G, Sies, Katharina, Jakob, Lena, Baumert, Hannah Maria, Heckl, Marlene, Cirac, Ana, Suhre, Janina L, Mathes, Verena, Fries, Fabian N, Spielmann, Hannah, Rigotti, Nancy, Seeger, Werner, Herth, Felix, Groneberg, David A, Raupach, Tobias, Gall, Henning, Bauer, Claudia, Marek, Pat, Batra, Anil, Harrison, Chase H, Taha, Lava, Owczarek, Andreas, Hofmann, Felix J, Thomas, Roger, Mons, Ute, Kreuter, Michael
Published in BMJ Open (2016)