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Pacey A, Merrick H, Arden-Close E, Morris K, Rowe R, Stark D, Eiser C.Pacey A, et al.Br J Cancer. 2013 Mar 19;108(5):1004-11. doi: 10.1038/bjc.2013.57. Epub 2013 Mar 7.Br J Cancer. 2013.PMID: 23470465Free PMC article.