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Kramer U, Greil G, Dammann F, Schick F, Miller S, Fenchel M, Sieverding L, Claussen CD.Kramer U, et al. Among authors: sieverding l.Rofo. 2004 Oct;176(10):1458-65. doi: 10.1055/s-2004-813475.Rofo. 2004.PMID: 15383978German.
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