enquête (1) modèle (1) information (1) éducation (1) âge (1) ville (1) Mexique (1) Mexico (1) Education (1) Testing (1) Prevention (1) Methods (1) Testing (1) Probabilities (1) Population (1) Persons (1) Materials (1) Manufacturers' agents (1) Example (1) Education (1) Design (1) Commission merchants (1) Age (1) Methods (1) Male-to-female transsexuals (1) Materials (1) Design (1) Age (1) Population (1) Number (1)