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Infants
Rotavirus
Newborn Infant
Haemophilus influenzae type b
Rotavirus Infections
Diarrhea
Haemophilus Meningitis
Infantile Diarrhea
Incidence
Seasons
Cost of Illness
Retrospective Studies
Age Distribution
Vietnam
China
Hospitalization
Population Surveillance
Sentinel Surveillance
Genotype
Rotavirus Vaccines
Co-Publications
18
16
14
12
8
7
6
5
4
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