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Calvert AH, Ghokul S, Al-Azraqi A, Wright J, Lind M, Bailey N, Highley M, Siddiqui N, Lunec J, Sinha D, Boddy A, Roberts T, Fenwick J.Calvert AH, et al.Semin Oncol. 1999 Feb;26(1 Suppl 2):90-4.Semin Oncol. 1999.PMID: 10190788Clinical Trial.