Letter to the Editor re: A rare case of renal collision tumour of oncocytoma and sarcomatoid renal cell carcinoma,Chang et al .

Chang D Woods C Sreeramula N , et al. A rare case of renal collision tumour of oncocytoma and sarcomatoid renal cell carcinoma J Clin Urol. Epub ahead of print 11 February 2019. DOI: 10.1177/2051415818824781.

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