Initial proliferation site of Marek's disease tumor cells in the spleen.
D000818:Animals; D002060:Bursa of Fabricius / Q000502:physiology; D002645:Chickens; D003520:Cyclophosphamide / Q000494:pharmacology; D008380:Marek Disease / Q000473:pathology*; D013154:Spleen / Q000473:pathology*; D013950:Thymus Gland / Q000502:physiology
D003520:Cyclophosphamide