title: Epithelial differentiation in Wilms' tumor: a clinicopathologic appraisal.
mesh_terms: D000367:Age Factors; D004848:Epithelium / Q000473:pathology; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000145:classification / Q000473:pathology*; D008297:Male; D009396:Wilms Tumor / Q000145:classification / Q000473:pathology*