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WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse ,  World Health Organization ,  United Nations International Drug Control Programme ,  [Substance use in Southern Africa : knowledge, attitudes, practices and opportunities for intervention : summary of baseline assessments in South Africa, the United Republic of Tanzania and Zambia / WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse]

WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse ,  World Health Organization ,  United Nations International Drug Control Programme ,  [Substance use in Southern Africa : knowledge, attitudes, practices and opportunities for intervention : summary of baseline assessments in South Africa, the United Republic of Tanzania and Zambia / WHO/UNDCP Global Initiative on Primary Prevention of Substance Abuse]