title: Intestinal crypt survival and total and per crypt levels of proliferative cellularity following irradiation: age response and animal lethality.
mesh_terms: D000818:Animals; D002455:Cell Division / Q000187:drug effects / Q000528:radiation effects*; D002470:Cell Survival; D004247:DNA / Q000096:biosynthesis; D006918:Hydroxyurea / Q000494:pharmacology; D007413:Intestinal Mucosa / Q000528:radiation effects*; D007583:Jejunum / Q000528:radiation effects*; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D011833:Radiation Injuries, Experimental / Q000401:mortality*; D013997:Time Factors
chemical_list: D004247:DNA; D006918:Hydroxyurea