title: [Dissemination of avian leukemia group viruses and methods of their identification].
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000175:diagnosis* / Q000453:epidemiology*; D005455:Fluorescent Antibody Technique; D011201:Poultry Diseases / Q000175:diagnosis* / Q000453:epidemiology*; D012698:Serologic Tests; D014586:USSR; D014481:United States
vernacular_title: Rasprostranenie virusov gruppy leĭkozov ptits i metody ikh indikatsii.