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Travers A, Jones AP, Kelly K, Barker SJ, Camargo CA, Rowe BH.Travers A, et al. Among authors: rowe bh.Cochrane Database Syst Rev. 2001;2001(2):CD002988. doi: 10.1002/14651858.CD002988.Cochrane Database Syst Rev. 2001.PMID: 11406055Free PMC article.Review.