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Halberstadt M, Brandenburg L, Sans N, Koerner-Stiefbold U, Koerner F, Garweg JG.Halberstadt M, et al. Among authors: koerner stiefbold u, koerner f.Klin Monbl Augenheilkd. 2003 Mar;220(3):116-21. doi: 10.1055/s-2003-38189.Klin Monbl Augenheilkd. 2003.PMID: 12664361