puits (1) risque (1) infection (1) évaluation (1) âge (1) ville (1) Mexique (1) Mexico (1) Testing (1) Diagnosis (1) Methods (1) Women (1) Sexually transmitted diseases (1) Testing (1) Syphilis (1) Risk (1) Men (1) Materials (1) Infection (1) Immunoglobulins (1) Hepatitis B (1) Hepatitis C (1) Evaluation (1) Diagnosis (1) Counseling (1) Age (1) Methods (1) Materials (1) Women (1) Age (1)