Regulation of ribosomal RNA synthesis.
D000818:Animals; D002466:Cell Nucleolus / Q000378:metabolism; D002499:Centrifugation, Density Gradient; D005260:Female; D007981:Levorphanol / Q000494:pharmacology; D008099:Liver / Q000378:metabolism; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D012270:Ribosomes / Q000378:metabolism*
D007981:Levorphanol; D012313:RNA