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Pennsylvania
Influenza Vaccines
Pneumococcal Vaccines
Urban Population
Socioeconomic Factors
Logistic Models
Risk Assessment
Risk Factors
Vaccination
Urban Health Services
Immunization Programs
Health Care Surveys
Health Fairs
Community Health Centers
African Americans
European Continental Ancestry Group
Infants
Human Influenza
Health Knowledge, Attitudes, Practice
National Cancer Institute (U.S.)
Co-Publications
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