J Roberts, J Ludford. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » AdolescentAdultAfrican Continental Ancestry GroupAge FactorsAgedChildChild, PreschoolEducational StatusFemaleHealth SurveysHumansIncomeMaleMiddle AgedResearch DesignSex FactorsStatistics as TopicUnited StatesVision TestsVisual Acuity
Year: 1977 PMID: 301681 DOI: 10.1037/e451032004-001
Source DB: PubMed Journal: Vital Health Stat 11 ISSN: 0083-1980