title: Electron microscope study of the early lesions in Marek's disease.I. Cytomorphology of the lesion.
mesh_terms: D000818:Animals; D002645:Chickens; D008221:Lymphoid Tissue / Q000648:ultrastructure; D008380:Marek Disease / Q000473:pathology*; D011201:Poultry Diseases / Q000473:pathology*