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Walker PD, Cavallo T, Bonsib SM; Ad Hoc Committee on Renal Biopsy Guidelines of the Renal Pathology Society.Walker PD, et al.Mod Pathol. 2004 Dec;17(12):1555-63. doi: 10.1038/modpathol.3800239.Mod Pathol. 2004.PMID: 15272280Free article.