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Damber JE, Tammela TL, Iversen P, Abrahamsson PA, Boccon-Gibod L, Olesen TK, van der Meulen E, Persson BE.Damber JE, et al.Urology. 2012 Jul;80(1):174-80. doi: 10.1016/j.urology.2012.01.092.Urology. 2012.PMID: 22748873Clinical Trial.