title: The nucleoli of cultured human lymphocytes. I. Nucleolar morphology in relation to transformation and the DNA cycle.
mesh_terms: D002455:Cell Division; D002466:Cell Nucleolus / Q000648:ultrastructure; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000648:ultrastructure*; D008938:Mitosis; D012261:Ribonucleoproteins; D014617:Vacuoles / Q000648:ultrastructure
chemical_list: D012261:Ribonucleoproteins