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Bergamin O, Anderson SC, Kardon RH.Bergamin O, et al. Among authors: kardon rh.Acta Ophthalmol Scand. 2004 Oct;82(5):535-43. doi: 10.1111/j.1600-0420.2004.00316.x.Acta Ophthalmol Scand. 2004.PMID: 15453849Free article.