title: Studies on nucleoli of lymphocytes and thymocytes in A strain mice.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000032:analysis; D008198:Lymph Nodes / Q000166:cytology*; D008214:Lymphocytes / Q000166:cytology* / Q000254:growth & development; D008297:Male; D051379:Mice; D008854:Microscopy, Electron; D012313:RNA / Q000032:analysis; D013950:Thymus Gland / Q000166:cytology*
chemical_list: D012313:RNA