Jaagsiekte Sheep Retrovirus (JSRV): from virus to lung cancer in sheep Caroline Leroux, Nicolas Girard, Vincent Cottin, Timothy Greenland, Jean-François Mornex and Fabienne Archer Vet. Res., 38 2 (2007) 211-228 Published online: 25 January 2007 DOI: 10.1051/vetres:2006060