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Saperia J, Lakhanpaul M, Kemp A, Glaser D; Guideline Development Group and Technical Team.Saperia J, et al. Among authors: glaser d.BMJ. 2009 Jul 22;339:b2689. doi: 10.1136/bmj.b2689.BMJ. 2009.PMID: 19625357Free PMC article.No abstract available.