Lee, Y. O., Pepper, J. K., MacMonegle, A. J., Nonnemaker, J. M., Duke, J. C., & Porter, L. (2018). Examining Youth Dual and Polytobacco Use with E-Cigarettes. Int J Environ Res Public Health.

Lee, Youn Ok, Jessica K. Pepper, Anna J. MacMonegle, James M. Nonnemaker, Jennifer C. Duke, ja Lauren Porter. "Examining Youth Dual and Polytobacco Use With E-Cigarettes." Int J Environ Res Public Health 2018.

Lee, Youn Ok, et al. "Examining Youth Dual and Polytobacco Use With E-Cigarettes." Int J Environ Res Public Health 2018.