title: Paired specimens: an opportunity to answer some important questions.
authors: Naomi B
authors: NB
authors: Haas
mesh_terms: D002292:Carcinoma, Renal Cell / Q000145:classification / Q000473:pathology*; D002999:Clone Cells; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000145:classification / Q000473:pathology*; D009362:Neoplasm Metastasis; D010641:Phenotype; D012509:Sarcoma / Q000473:pathology*