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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
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
