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Wagner JE, Johnson RJ, Santos GW, Kim BK, Shin HS.Wagner JE, et al. Among authors: santos gw.Blood. 1989 Feb;73(2):614-8.Blood. 1989.PMID: 2644981Free article.
Yeager AM, Wagner JE Jr, Graham ML, Jones RJ, Santos GW, Grochow LB.Yeager AM, et al. Among authors: santos gw.Blood. 1992 Nov 1;80(9):2425-8.Blood. 1992.PMID: 1421415Free article.