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Head BA, Keeney C, Studts JL, Khayat M, Bumpous J, Pfeifer M.Head BA, et al.J Support Oncol. 2011 Jan 1;9(1):e1-e11. doi: 10.1016/j.suponc.2010.12.006.J Support Oncol. 2011.PMID: 21499540Free PMC article.