%0 conference lecture %@ %A Fonfara, S.,Siebert, U.,Prange, A.,Colijn, F. %D 2006 %J 37th Annual IAAAM Conference, International Association for Aquatic Animal Medicine %N %P %T Variations of Cytokine Expression and the Impact of Stress and Infection in Harbour Seals (Phoca Vitulina) of the North Sea %U %X