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Choi YC, Kim SK, Lee SH, Lee MS, Choi IS, Chung UK.Choi YC, et al. Among authors: lee sh, lee ms.Yonsei Med J. 1993 Jun;34(2):195-200. doi: 10.3349/ymj.1993.34.2.195.Yonsei Med J. 1993.PMID: 8379199Free article.
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