3Lipponen P,Esrelinen M, Syrianen, HE. Expression of proliferating cell nuclear antigen (pcio), p53 protein and cerb-2 in renal adenocarcinoma, Int J Cancer,1994,57:275.
4Crocker J, Nar P. Nucleolar organizer regions in lymphomas, J Pathol, 1987,151:111.