W E Halperin. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » ChildChild CareHumansPopulation SurveillancePreventive Health ServicesUnited States
Year: 1995 PMID: 7630986 PMCID: PMC1382089
Source DB: PubMed Journal: Public Health Rep ISSN: 0033-3549 Impact factor: 2.792