Pathological studies of Marek's disease. I. The histopathology on field cases in Japan.
D000818:Animals; D001353:Avian Leukosis / Q000473:pathology*; D002645:Chickens; D006566:Herpesviridae Infections / Q000662:veterinary*; D007564:Japan; D008380:Marek Disease / Q000473:pathology; D011201:Poultry Diseases / Q000473:pathology*