title: Electron-microscope proof of virus particles in fowl myelocytomatosis.
mesh_terms: D000818:Animals; D001354:Avian Leukosis Virus; D001859:Bone Neoplasms / Q000473:pathology*; D066298:In Vitro Techniques; D008854:Microscopy, Electron; D010954:Plasmacytoma / Q000473:pathology*; D011200:Poultry