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Watson DE, Katz A, Reid RJ, Bogdanovic B, Roos N, Heppner P.Watson DE, et al. Among authors: reid rj.CMAJ. 2004 Aug 17;171(4):339-42. doi: 10.1503/cmaj.1031047.CMAJ. 2004.PMID: 15313992Free PMC article.