Bam, W. Bellew, I. Berezhnova, A. Jackson-Morris, A. Jones, E. Latif, M. A. Molinari, G. Quan, R. Singh, M. Wisotzk. (2013). Position statement on electronic cigarettes or electronic nicotine delivery systems. The International Journal of Tuberculosis and Lung Disease 18(1), 5-7. doi:10.5588/ijtld.13.0815