1. References to studies included in this review
2. Abernathy 1992 {published data only}
3. Preventing cigarette smoking among children: Results of a four-year evaluation of the PAL program;Abernathy;Canadian Journal of Public Health,1992
4. Predicting smoking among adolescents using cross-sectional and longitudinal approaches;Bertrand;Journal of School Health,1993
5. Armstrong 1990 (Peer) {published data only}