Tobacco / Drug Use / Mexico City / Risk factors / Public health systems and services research / Illicit Drugs / Risk Factors / Logistic Regression Model / Cluster Sampling / Confidence Interval / Urban Area / Illicit Drugs / Risk Factors / Logistic Regression Model / Cluster Sampling / Confidence Interval / Urban Area
Primary Care / Spain / Drug Use / Humans / Clinical Sciences / Atencion Primaria De La Salud / Drug Utilization / Atencion Primaria De La Salud / Drug Utilization
