title: C-type virus particles in avian bursa of Fabricius cells grown in vitro.
mesh_terms: D000818:Animals; D002060:Bursa of Fabricius; D002478:Cells, Cultured; D002645:Chickens; D003588:Cytopathogenic Effect, Viral; D008854:Microscopy, Electron; D009858:Oncogenic Viruses / Q000254:growth & development*; D012328:RNA Viruses / Q000254:growth & development*; D012190:Retroviridae / Q000254:growth & development