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Gattellari M, Worthington JM, Zwar NA, Middleton S.Gattellari M, et al. Among authors: middleton s.BMC Fam Pract. 2008 Nov 13;9:62. doi: 10.1186/1471-2296-9-62.BMC Fam Pract. 2008.PMID: 19014560Free PMC article.