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Puerto Rico
HIV Infections
Hepatitis C
Substance-Related Disorders
Mental Disorders
Cocaine-Related Disorders
Young Adult
Seroepidemiologic Studies
Managed Care Programs
Attitude to Health
Questionnaires
Privatization
Domestic Violence
Prevalence
Risk Factors
Poverty Areas
Capitation Fee
Crack Cocaine
Hepatitis C Antibodies
Unemployment
Co-Publications
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