Ghith, N., A. B. Ammari, M. Rasmussen, A. . Frølich, K. Cooper, and H. Tønnesen. “Impact of Compliance on Quit Rates in a Smoking Cessation Intervention: Population Study in Denmark”. Clinical Health Promotion, vol. 2, no. 3, Dec. 2012, pp. 111-9, doi:10.29102/clinhp.12016.