(Q51996300)
Statements
Identifying the content area for the 51-item National Eye Institute Visual Function Questionnaire: results from focus groups with visually impaired persons. (English)
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C M Mangione
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S Berry
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K Spritzer
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N K Janz
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R Klein
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C Owsley
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P P Lee
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1 February 1998
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116
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2
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227-233
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