The quantiative estimation of vision-historical review.
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Vision Tests↗
Biomedical subjects
V RYAN
Publications and source records attributed to V RYAN.
Truth, falsehood, and medical ethics.
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Ethics, Medical↗
Referrals from visual screening of school children.
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Child↗
Optometric and medical ethics.
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Ethics, Medical↗
A critical study of visual screening.
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Humans↗