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Schlappack OK, Bush C, Delic JI, Steel GG.Schlappack OK, et al. Among authors: steel gg.Eur J Cancer Clin Oncol. 1988 Apr;24(4):777-81. doi: 10.1016/0277-5379(88)90314-8.Eur J Cancer Clin Oncol. 1988.PMID: 3383978