[Fine structure of variola viruses in hens and pigeons].
D000818:Animals; D011201:Poultry Diseases / Q000382:microbiology*; D011212:Poxviridae / Q000166:cytology*; D011213:Poxviridae Infections / Q000662:veterinary*
Tonkaia struktura virusov ospy kur i golubeĭ.