TY  - GEN
AU  - Costa,E A
TI  - Effectiveness of meningococcal vaccine in Brazil
SN  - 0300-5771
PY  - 1997///0911
KW  - Brazil
KW  - epidemiology
KW  - Child
KW  - Child, Hospitalized
KW  - statistics & numerical data
KW  - Child, Preschool
KW  - Health Services Accessibility
KW  - Humans
KW  - Infant
KW  - Meningococcal Infections
KW  - Outcome Assessment, Health Care
KW  - standards
KW  - Selection Bias
KW  - Serologic Tests
KW  - Vaccination
N1  - Publication Type: Letter; Comment
UR  - https://doi.org/10.1093/ije/26.3.681b
ER  -