An Exploratory Study Of Inhalers And Injectors Who Used Black Tar ...

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• Heroin In Brown, Black And White: Structural Factors And Medical ...

• Heroin - My Health Alberta

• [PDF] User Perspectives On “Black Tar” And Powder Heroin In Two US Cities

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• [PDF] H Is For Heroin - Turning Point

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• Toots, Tastes And Tester Shots: User Accounts Of Drug Sampling ...

• From Poppy To Heroin ~ Step 5: Heroin Purification | Wide Angle | PBS

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• [PDF] Documentation Of A Heroin Manufacturing Process In Afghanistan