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Subjects
- Humans4
- Program Development[remove]4
- United States4
- Outcome Assessment (Health Care)2
- Accidents, Occupational -- prevention & control1
- Adult1
- Aged1
- Blood Specimen Collection -- methods1
- Communication1
- Cooperative Behavior1
- Data Collection1
- Disease Outbreaks -- prevention & control1
- Equipment Design1
- Frail Elderly1
- Health Care Reform1
- Health Knowledge, Attitudes, Practice1
- Health Personnel -- psychology1
- Immunization Programs -- utilization1
- Influenza Vaccines -- administration & dosage1
- Influenza, Human -- mortality1