Medicina preventiva (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Medicina preventiva" in Catalan language version.

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Kumpeer, Karol L.; Baxley, Gladys B. Drug abuse prevention: What works? (en anglès). NC. Rockville: National Institute on Drug Abuse, 1997, p. 96 [Consulta: 19 abril 2009].