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Shun-Shin M, Thompson M, Heneghan C, Perera R, Harnden A, Mant D.Shun-Shin M, et al. Among authors: heneghan c.BMJ. 2009 Aug 10;339:b3172. doi: 10.1136/bmj.b3172.BMJ. 2009.PMID: 19666987Free PMC article.Review.