Reevaluation of the 1997 TNM classification for renal cell carcinoma: T1 and T2 cutoff point at 4.5 cm rather than 7 cm better correlates with clinical outcome. - Zisman,A.; Pantuck,A.J.; Chao,D.; Dorey,F.; Said,J.W.; Gitlitz,B.J.; Kernion,J.B de.; Figlin,R.A.; Belldegrun,A.S. (J Urol, 2001)