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Song SK, Cho MR, Lee SH, Kim HC, Kang DW, Choi WK.Song SK, et al. Among authors: choi wk.J Orthop Surg (Hong Kong). 2020 Jan-Apr;28(2):2309499020926268. doi: 10.1177/2309499020926268.J Orthop Surg (Hong Kong). 2020.PMID: 32468906Free article.