Smoking: dichotomous variable has two values: yes and no
Drinking beer, wine: dichotomous variable 2 value as "the amount of less than 3 cups / day (males), less than 2 cups / day (female) and a total of fewer than 14 cup / week (men), less than 9 cups / week (women): cereal equivalent standard 330ml 140ml of beer or wine, or 40ml spirits "and sometimes drink more load.
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