title: Release of spleen focus-forming virus (SFFV) from differentiation inducible promyelocytic leukemia cell lines transformed in vitro by Friend leukemia virus.
mesh_terms: D000818:Animals; D002460:Cell Line; D002471:Cell Transformation, Neoplastic; D002472:Cell Transformation, Viral; D002999:Clone Cells; D005622:Friend murine leukemia virus / Q000502:physiology*; D006410:Hematopoiesis; D007942:Leukemia, Experimental; D015470:Leukemia, Myeloid, Acute; D051379:Mice; D009504:Neutrophils / Q000166:cytology