title: Ultrastructural features of the early proliferating cells involved in hemopoietic colony formation.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002467:Cell Nucleus; D002843:Chromatin; D006412:Hematopoietic Stem Cells / Q000166:cytology* / Q000378:metabolism / Q000528:radiation effects*; D008214:Lymphocytes / Q000166:cytology / Q000378:metabolism; D008264:Macrophages / Q000166:cytology; D051379:Mice; D008854:Microscopy, Electron; D008938:Mitosis; D011830:Radiation Effects; D013154:Spleen / Q000166:cytology / Q000528:radiation effects; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002843:Chromatin; D014316:Tritium; D013936:Thymidine