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All India Institute of Speech and Hearing, Mysuru
(An Autonomous institute Under Ministry of Health and Family Welfare, Government of India.)

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Visual acuity of youths 12-17 years : United States /

Visual acuity of youths 12-17 years : United States / US Department of Health, Education, and Welfare - Maryland : US Department of Health, Education, and Welfare, 1973. - 44 p.


Visual problems--Youths