risque (3) Risk (3) Chinese (3) Chinois (3) puits (2) perception du risque (2) province (2) politique (2) infection (2) santé (2) expérience scientifique (2) Surveys (2) Waves (2) Surveys (2) Social sciences (2) Risk perception (2) Perception (2) Orientation (2) Manufacturers' agents (2) Infection (2) Health (2) Experience (2) Confidence (2) Commission merchants (2) Attitudes (2) Areas (2) Orientation (2) Infections (2) Health (2) province (2)