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Oelke M, Wagg A, Takita Y, Büttner H, Viktrup L.Oelke M, et al. Among authors: buttner h.BJU Int. 2017 May;119(5):793-803. doi: 10.1111/bju.13744. Epub 2017 Jan 22.BJU Int. 2017.PMID: 27988986