Results of vision screening at seven years in the Johns Hopkins Collaborative Perinatal Project.
D044383:Black People; D002648:Child; D002662:Child Health Services; D005260:Female; D006784:Hospitals, Teaching; D006801:Humans; D008297:Male; D008396:Maryland; D008403:Mass Screening; D012017:Referral and Consultation; D012189:Retrospective Studies; D014786:Vision Disorders / Q000453:epidemiology*; D014787:Vision Tests; D044465:White People; D001741:Black or African American