Vidrine DJ, Fletcher FE, Danysh HE, Marani S, Vidrine JI, Cantor SB, Prokhorov AV. A randomized controlled trial to assess the efficacy of an interactive mobile messaging intervention for underserved smokers: project ACTION. BMC Public Health. 2012 Aug 25;12:696. doi: 10.1186/1471-2458-12-696