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Kenneth Johnson(Jan 24, 2018)."Just one cigarette a day seriously elevates cardiovascular risk".British Medical Journal360: k167.doi:10.1136/bmj.k167.பப்மெட்:29367307.
Nyboe J, Jensen G, Appleyard M, Schnohr P;Jensen;Appleyard;Schnohr(1989)."Risk factors for acute myocardial infarction in Copenhagen. I: Hereditary, educational and socioeconomic factors. Copenhagen City Heart Study".Eur Heart J10(10): 910–16.doi:10.1093/oxfordjournals.eurheartj.a059401.பப்மெட்:2598948.
"Summaries for patients. Primary care interventions to prevent tobacco use in children and adolescents: U.S. Preventive Services Task Force recommendation statement".Ann. Intern. Med.159(8): 1–36.2013.doi:10.7326/0003-4819-159-8-201310150-00699.பப்மெட்:23974179.