Smith, C. L., Cooper, B. R., Miguel, A., Hill, L., Roll, J., & McPherson, S. (2021). Predictors of cannabis and tobacco co-use in youth: Exploring the mediating role of age at first use in the population assessment of tobacco health (PATH) study. J Cannabis Res.

Smith, Crystal Lederhos, Brittany Rhoades Cooper, Andre Miguel, Laura Hill, John Roll, và Sterling McPherson. "Predictors of Cannabis and Tobacco Co-use in Youth: Exploring the Mediating Role of Age At First Use in the Population Assessment of Tobacco Health (PATH) Study." J Cannabis Res 2021.

Smith, Crystal Lederhos, et al. "Predictors of Cannabis and Tobacco Co-use in Youth: Exploring the Mediating Role of Age At First Use in the Population Assessment of Tobacco Health (PATH) Study." J Cannabis Res 2021.