title: Fine structural and immunohistochemical studies on the thymic cysts in ducks.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis; D002060:Bursa of Fabricius / Q000502:physiology; D004372:Ducks / Q000033:anatomy & histology* / Q000276:immunology; D006735:Horseradish Peroxidase / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology / Q000648:ultrastructure*
chemical_list: D000906:Antibodies; D006735:Horseradish Peroxidase