The positive adjuvant effect of chitosan on antigen-specific cell-mediated immunity after chickens vaccination with live Newcastle disease vaccine., Rauw, Fabienne, Gardin Yannick, Palya Vilmos, Anbari Sofia, Gonze Martine, Lemaire Sophie, van den Berg Thierry, and Lambrecht Bénédicte , Vet Immunol Immunopathol, 2010 Apr 15, Volume 134, Issue 3-4, p.249-58, (2010)