Involvement of thymus cells in the formation of germinal centers.
D000818:Animals; D001854:Bone Marrow Cells; D008198:Lymph Nodes / Q000166:cytology* / Q000648:ultrastructure; D008214:Lymphocytes / Q000528:radiation effects; D008297:Male; D008643:Mesentery / Q000166:cytology; D051379:Mice; D011830:Radiation Effects; D013154:Spleen / Q000166:cytology*; D013934:Thymectomy; D013950:Thymus Gland / Q000166:cytology; D013997:Time Factors