RT Journal Article SR Electronic T1 Value of the silver-stained nucleolar organizer regions technique in the differentiation between benign and malignant lesions in urine cytology JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 719 OP 721 VO 30 IS 5 A1 Hussein, Haider G. A1 Ali, Hussam H. YR 2009 UL http://smj.org.sa/content/30/5/719.abstract