Source:http://linkedlifedata.com/resource/umls/id/C1519356
NCI: The Sloan-Kettering viruses (SKVs) are a group of transforming retroviruses that were isolated from chicken embryo cells which had been infected with the avian leukosis virus transformation-defective Bratislava 77 (tdB77). (from Li et al. J Virol 1986;57:1065-72)