poids (1) tabagisme (1) région (1) association (1) variation génétique (1) gène (1) exposition (1) effet (1) Variation (1) Methods (1) Weight gain (1) Ex-smokers (1) Smoking cessation (1) Ci (Chinese poetry) (1) Social groups (1) Smoking (1) Reason (1) Evidence (1) Confidence (1) Methods (1) Body mass index (1) Weight (1) Influence (1) Size (1) Quantity (1)