title: The proportion of cells labeled with tritiated thymidine as a function of population doubling level in cultures of fetal, adult, mutant, and tumor origin.
mesh_terms: D002455:Cell Division; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism; D002478:Cells, Cultured / Q000166:cytology*; D005199:Fanconi Anemia; D006367:HeLa Cells; D009154:Mutation; D011371:Progeria; D013936:Thymidine / Q000378:metabolism; D014983:Xeroderma Pigmentosum
chemical_list: D013936:Thymidine