Immunological basis of differences in disease resistance in the chicken Bereket Zekarias, Agnes A.H.M. Ter Huurne, Wil J.M. Landman, Johanna M.J. Rebel, Jan M.A. Pol and Erik Gruys Vet. Res., 33 2 (2002) 109-125 DOI: 10.1051/vetres:2002001