Isolation of unidentified agents capable of morphologically transforming hamster cells in vitro.
D000818:Animals; D002642:Chick Embryo; D006224:Cricetinae; D046508:Culture Techniques; D005347:Fibroblasts; D006367:HeLa Cells; D007668:Kidney; D051379:Mice; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D011817:Rabbits; D012377:Rodentia