Heatherton TF, Kozlowski LT, Frecker RC, Fagerstrom KO. The Fagerstrom Test for Nicotine Dependence : a revision of the Fagerstrom Tolerance Questionnaire. Br J Addict 1991;86(9):1119-27. Fagerström K. Determinants of tobacco use and renaming the FTND to the Fagerström Test for Cigarette Dependence. Nicotine Tob Res 2012;14(1):75 – 8.
