P W Johnston. Show Affiliations »
Abstract
Mesh: See more » ChildHumansHyperopia/diagnosisMass ScreeningMassachusettsMethodsSchool Health ServicesVision Disorders/diagnosisVision Tests/instrumentation
Year: 1968 PMID: 4972197 PMCID: PMC1891819
Source DB: PubMed Journal: Public Health Rep ISSN: 0094-6214 Impact factor: 2.792