title: Electron microscope study of the early lesions in Marek's disease. II. Histogenesis of the lesions.
mesh_terms: D000818:Animals; D001808:Blood Vessels / Q000648:ultrastructure; D002645:Chickens; D008221:Lymphoid Tissue / Q000648:ultrastructure; D008380:Marek Disease / Q000473:pathology*; D010525:Peripheral Nerves / Q000648:ultrastructure; D011201:Poultry Diseases / Q000473:pathology*