• 2 Journals, Magazines, Newspapers

• 1 Immunization
• 1 Mumps
• 1 Vaccines
• 1 epidemiology

• 1 Center for Disease Control
• 1 National Communicable Disease Center (U.S.)
• 1 United States. Public Health Service

• 2 English

• 2 United States

• 1 Periodicals
• 1 periodicals
• 1 statistics

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