enquête (7) Social sciences (7) French (7) Science (6) Use (6) Cannabis (5) âge (4) Care (4) Persons (4) Manufacturers' agents (4) Human beings (4) Commission merchants (4) Age (4) Age (4) Health (4) mise sous écran protecteur (3) besoin (3) information (3) santé (3) effet (3) consommation (3) Treatment (3) Ci (Chinese poetry) (3) Physicians (General practice) (3) Night (3) Medical care (3) Manufactures (3) Health (3) Finance (3) Confidence (3)