Colombie (1) Drugs of abuse (1) Immunodeficiency (1) Viruses (1) Trust (1) Sex (Biology) (1) Sampling (1) Drug addicts (1) Life (1) Hepatitis C (1) Health (1) Consumption (Economics) (1) Confidence (1) Compulsive behavior (1) Cities and towns (1) Toma de muestras (1) Hepatitis C (1) Confianza (1) Adicción (1) Salud (1) Inmunodeficiencia (1) Vida (1) Estudio (1) Virus (1) Drogadictos (1) Ciudades (1) Drogas (1) Sexo (1) Consumo (1) Colombianas (1)