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Auteur R. L. RIGGS |
Documents disponibles écrits par cet auteur (1)

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Périodique
J. R. HUGHES ; R. L. RIGGS ; M. J. CARPENTER | 2001Raters called a convenience sample of 30 helplines and claimed to be alcohol, cocaine, heroin, marijuana or tobacco dependent persons seeking treatment. Responses were categorized as helpful, neutral or unhelpful. The median Kappa for agreement [...]