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Urquia ML, Berger H, Ray JG; Canadian Curves Consortium.Urquia ML, et al. Among authors: ray jg.CMAJ. 2015 Jan 6;187(1):E32-E40. doi: 10.1503/cmaj.140748. Epub 2014 Nov 10.CMAJ. 2015.PMID: 25384653Free PMC article.