Figure 1.
Forest plot of the risk of HNC associated with lifetime consumption of 3 to 5 cigarettes per day compared with never smokers, in the INHANCE Consortium. Pop, population-based; hosp, hospital.

Forest plot of the risk of HNC associated with lifetime consumption of 3 to 5 cigarettes per day compared with never smokers, in the INHANCE Consortium. Pop, population-based; hosp, hospital.

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