title: Some characteristics of the virus responsible for osteopetrosis in chickens.
mesh_terms: D001355:Alpharetrovirus / Q000145:classification* / Q000472:pathogenicity*; D000818:Animals; D008854:Microscopy, Electron; D010022:Osteopetrosis / Q000662:veterinary*; D011201:Poultry Diseases / Q000209:etiology*; D012367:RNA, Viral
chemical_list: D012367:RNA, Viral