Journal of Experimental & Clinical Cancer Research 2008, 27:51 http://www.jeccr.com/content/27/1/51 FKiagpularne-M2eier survival curves according to protein expression of p27Kip1, Skp2 and Cks1 Kaplan-Meier survival curves according to protein expression of p27Kip1, Skp2 and Cks1. Cancer-specific survival of patients with RCC were significantly associated with the expression levels of p27Kip1 (A), Skp2(C), Cks1(E); Recurrence-free survival were significantly associated with the expression levels of p27Kip1 (B), Skp2(D), Cks1(F). Page 6 of 8 (page number not for citation purposes)