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Kim H, Park CM, Jeon S, Lee JH, Ahn SY, Yoo RE, Lim HJ, Park J, Lim WH, Hwang EJ, Lee SM, Goo JM.Kim H, et al. Among authors: lim wh, lim hj.BMJ Open. 2018 May 24;8(5):e019996. doi: 10.1136/bmjopen-2017-019996.BMJ Open. 2018.PMID: 29794091Free PMC article.