Charlson co-morbidity index as a predictor of outcome after surgery for renal cell carcinoma with renal vein, vena cava or right atrium extension.
J Urol. 2003 Apr;169(4):1282-6. doi: 10.1097/01.ju.0000049093.03392.cc.
J Urol. 2003.
PMID: 12629343