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Peto R, Darby S, Deo H, Silcocks P, Whitley E, Doll R «Smoking, smoking cessation, and lung cancer in the UK since 1950: combination of national statistics with two case-control studies». BMJ, 321, 7257, 2000, pàg. 323–9. DOI: 10.1136/bmj.321.7257.323. PMC: 27446. PMID: 10926586.
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«Estimating the number of quit attempts it takes to quit smoking successfully in a longitudinal cohort of smokers». BMJ Open, 6, 6, 6-2016, pàg. e011045. DOI: 10.1136/bmjopen-2016-011045. PMC: 4908897. PMID: 27288378.