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Chronic dry eye has a clinically important impact on approximately 4.25 million Americans age 50 and older--3.2 million women and 1.05 million men.
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Schaumberg, D.A., and Gardiner M. Schein Od. Smolin and Thoft's The Cornea: Scientific Foundations and Clinical Practice: 4th ed.. Philadelphia, PA: Lippincott Williams & Wilkins. 2004. [ Permalink ] |
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