Virulence-associated trimeric autotransporters of Haemophilus parasuis are antigenic proteins expressed in vivoAlex Olvera, Sonia Pina, Marta Pérez-Simó, Simone Oliveira and Albert BensaidVet. Res., 41 3 (2010) 26DOI: https://doi.org/10.1051/vetres/2009074