The relative risk of ulcerative keratitis among users of daily-wear and extended-wear soft contact lenses. A case-control study. Microbial Keratitis Study Group.

Source:http://linkedlifedata.com/resource/pubmed/id/2671733

N. Engl. J. Med. 1989 Sep 21 321 12 773-8

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PMID
2671733