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Schaumberg DA, Christen WG, Buring JE, Glynn RJ, Rifai N, Ridker PM.Schaumberg DA, et al. Among authors: christen wg.Arch Ophthalmol. 2007 Mar;125(3):300-5. doi: 10.1001/archopht.125.3.300.Arch Ophthalmol. 2007.PMID: 17353399Free PMC article.