(Q40257338)
Statements
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How to find future ecstasy-users: targeted and snowball sampling in an ethically sensitive context (English)
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Wim van den Brink
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Hylke K E Vervaeke
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Dirk J Korf
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Annemieke Benschop
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26 December 2006
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32
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8
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1705-1713
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Identifiers
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