Predictors of tobacco use initiation in adolescents: a two-year prospective study and theoretical discussion
D. R. Wahlgren, M. F. Hovell, D. J. Slymen, T. L. Conway, C. R. Hofstetter, and J. A. Jones
Tob Control. 1997 June; 6(2): 95–103. PMCID: PMC1759558