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Age-related smoking progression among adolescents in China.
Sun W, Andreeva VA, Unger JB, Conti DV, Chou CP, Palmer PH, Sun P, Johnson CA. Sun W, et al. Among authors: sun p. J Adolesc Health. 2006 Nov;39(5):686-93. doi: 10.1016/j.jadohealth.2006.04.023. Epub 2006 Jul 10. J Adolesc Health. 2006. PMID: 17046505
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