MHC polymorphism and disease resistance in Atlantic salmon (Salmo salar); facing pathogens with single expressed major histocompatibility classI and classII loci - Unni Grimholt; Stig Larsen; Rolf Nordmo; Paul Midtlyng; Sissel Kjoeglum; Arne Storset; Solve Saeb; Ren J. M. Stet (Immunogenetics, 2003)