title: On the nature of the periellipsoidal lymphoid tissue of chick spleen.
mesh_terms: D000818:Animals; D002060:Bursa of Fabricius / Q000502:physiology / Q000528:radiation effects; D002645:Chickens; D002988:Cloaca / Q000528:radiation effects; D008221:Lymphoid Tissue / Q000033:anatomy & histology / Q000254:growth & development* / Q000528:radiation effects; D008297:Male; D009333:Neck / Q000528:radiation effects; D011830:Radiation Effects; D013154:Spleen / Q000254:growth & development*; D013934:Thymectomy