Medicine & Life Sciences
Human Influenza
100%
Vaccination
76%
Influenza Vaccines
40%
Vaccines
30%
Elderly
25%
Hospitalization
18%
Immunization
18%
Cost-Benefit Analysis
12%
Outpatients
11%
Economics
11%
Inactivated Vaccines
10%
Veterans
8%
Costs and Cost Analysis
8%
Pneumonia
8%
Mortality
7%
Delivery of Health Care
7%
Confidence Intervals
7%
Health Personnel
7%
Attenuated Vaccines
6%
Insurance Benefits
6%
Health
6%
Placebos
5%
Child
5%
Patient Acceptance of Health Care
5%
Independent Living
5%
Chronic Obstructive Pulmonary Disease
5%
Students
5%
Occupational Groups
5%
Lung Diseases
5%
Social Sciences
contagious disease
40%
vaccination
34%
costs
6%
human being
5%
illness
5%