Karunathilake, I.M., Liyanage, I.K., Palmer, P.H., Mathews, D.R., Wickramasinghe, K.K., Pathirana, A.C.A. (2009) Prevalence of Addictive Substances Except Tobacco and Alcohol, among Teenage School Children in Colombo, Sri Lanka, 41th APACPH Conference , 2009, Taiwan
Publication year: 2009

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