However, KIP2 expression has been found to be reduced in Wilms' tumours in some studies, but not in others (Chung et al, 1996; Hatada et al, 1996; Thompson et al, 1996; O'Keefe et al, 1997; Taniguchi et al, 1997; Soejima et al, 1998). This evidence concerns the gene CDKN1C and Wilms tumor.