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PRESENTACIÓN - Plan Nacional sobre drogas

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SUMARIOS DE REVISTAS<br />

LETTERS TO THE EDITOR<br />

A response to Tucker (2012) (pages 826–827)<br />

Peter J. Gates, Jan Copeland, Melissa M. Norberg and Erol Digiusto<br />

Could the use of biochemical validation of smoking abstinence introduce a confound into the interpretation<br />

of randomized controlled trials of tobacco cessation? (pages 827–828)<br />

John Alastair Cunningham and Vladyslav Kushnir<br />

BOLETÍN DEL CENTRO DE DOCUMENTACIÓN E INFORMACIÓN DE LA DELEGACIÓN DEL GOBIERNO PARA EL PLAN NACIONAL SOBRE DROGAS – Nº 51<br />

E‐mail: cendocupnd@msssi.es http://www.pnsd.msssi.gob.es<br />

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