Centre for Combating Tobacco (CCT), Faculty of Medicine, University of Colombo and Presidential Task Force on Drug Prevention, Sri Lanka. 2018
Lamb, K. 2018
2002
Ramos, A. K. 2018
2014
Wurth, M. 2019
Boseley, S. 2018
WHO 2017
Bialous, S. A., Hendlin, Y.H. 2020