Color vision deficiencies in children, United States; prevalence of color vision deficiencies, as identified on examination with plates from the Ishihara test and typed with the Hardy-Rand-Ritter test, among children of 6-11 years by age, sex, race, family income, and area of residence.
Title:
Color vision deficiencies in children, United States; prevalence of color vision deficiencies, as identified on examination with plates from the Ishihara test and typed with the Hardy-Rand-Ritter test, among children of 6-11 years by age, sex, race, family income, and area of residence.
Author:
Scanlon, James V.
Personal Author:
Publication Information:
Rockville, Md. : National Center for Health Statistics; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington], 1972.
Physical Description:
iii, 34 pages ; 27 cm.
Language:
English
Added Author:
Format :
Book