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Yang DY, Ko K, Lee SH, Cho JS, Lee SK, Shin TY, Lee WK.Yang DY, et al. Among authors: ko k.World J Mens Health. 2018 Sep;36(3):263-270. doi: 10.5534/wjmh.180042.World J Mens Health. 2018.PMID: 30168300Free PMC article.