title: The binding of actinomycin D-3H to heterochromatin as studied by quantitative high resolution radioautography.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002466:Cell Nucleolus / Q000032:analysis; D002467:Cell Nucleus / Q000032:analysis*; D006224:Cricetinae; D004247:DNA / Q000032:analysis*; D003609:Dactinomycin; D005347:Fibroblasts / Q000187:drug effects; D007668:Kidney / Q000166:cytology; D014316:Tritium
chemical_list: D014316:Tritium; D003609:Dactinomycin; D004247:DNA