K B Surles, P W Johmson. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » Child Day Care CentersChild, PreschoolHumansImmunizationInfantNorth CarolinaPopulationPreventive Health Services/statistics & numerical dataSampling Studies
Year: 1976 PMID: 825924 PMCID: PMC1440583
Source DB: PubMed Journal: Public Health Rep ISSN: 0033-3549 Impact factor: 2.792