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Kirschner-Hermanns R, Knispel C, Möller M, Willis S, Jakse G.Kirschner-Hermanns R, et al.Urologe A. 2003 May;42(5):677-84. doi: 10.1007/s00120-002-0255-6. Epub 2003 Jan 17.Urologe A. 2003.PMID: 12750803German.