title: Studies on the methylated regions of HeLa-cell ribosomal and nucleolar ribonucleic acids.
mesh_terms: D001483:Base Sequence; D002247:Carbon Isotopes; D002466:Cell Nucleolus / Q000032:analysis*; D004586:Electrophoresis; D006367:HeLa Cells / Q000032:analysis*; D006801:Humans; D008745:Methylation; D009711:Nucleotides / Q000032:analysis; D010759:Phosphorus Isotopes; D012334:RNA, Neoplasm / Q000032:analysis*; D012335:RNA, Ribosomal / Q000032:analysis*; D012260:Ribonucleases; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D009711:Nucleotides; D010759:Phosphorus Isotopes; D012334:RNA, Neoplasm; D012335:RNA, Ribosomal; D014316:Tritium; D012260:Ribonucleases