Vaccination of calves using the BRSV nucleocapsid protein in a DNA prime-protein boost strategy stimulates cell-mediated immunity and protects the lungs against BRSV replication and pathology., Letellier, Carine, Boxus Mathieu, Rosar Laurent, Toussaint Jean-François, Walravens Karl, Roels S., Meyer Gilles, Letesson Jean-Jacques, and Kerkhofs Pierre , Vaccine, 2008 Sep 02, Volume 26, Issue 37, p.4840-8, (2008)