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[Aging of the crystalline lens and presbyopia].
Beers AP, van der Heijde GL, Dubbelman M. Beers AP, et al. Among authors: van der heijde gl. Tijdschr Gerontol Geriatr. 1998 Aug;29(4):185-8. Tijdschr Gerontol Geriatr. 1998. PMID: 9746933 Review. Dutch.
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