Investigation of an increase of solid tumors in chickens vaccinated against Marek's disease.
D000818:Animals; D001353:Avian Leukosis / Q000453:epidemiology; D001354:Avian Leukosis Virus / Q000276:immunology / Q000302:isolation & purification; D002140:California; D002645:Chickens; D005354:Fibrosarcoma / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary; D005513:Food Inspection; D006390:Hemangioendothelioma / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary; D008380:Marek Disease / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D009369:Neoplasms / Q000662:veterinary*; D011201:Poultry Diseases / Q000453:epidemiology* / Q000276:immunology; D011446:Prospective Studies; D012189:Retrospective Studies; D014611:Vaccination / Q000009:adverse effects / Q000662:veterinary*; D009396:Wilms Tumor / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary