Yokoyama, Y Norethindrone scatters silver-stained nucleolar organizer regions of Ishikawa cells. [electronic resource] - Cancer research Nov 1991 - 5987-92 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0008-5472 Subjects--Topical Terms: Cell LineDNA Replication--drug effectsEndometrial NeoplasmsFemaleGonadal Steroid Hormones--pharmacologyHormones--pharmacologyHumansKineticsMicroscopy, ElectronNorethindrone--pharmacologyNucleolus Organizer Region--drug effectsRNA, Neoplasm--biosynthesisSilverStaining and LabelingSteroids--pharmacology