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Yang Q, Zhang C, Hines K, Calder LA.Yang Q, et al. Among authors: hines k.CMAJ Open. 2018 Nov 19;6(4):E561-E566. doi: 10.9778/cmajo.20180077. Print 2018 Oct-Dec.CMAJ Open. 2018.PMID: 30459173Free PMC article.