Virulence factors of Actinobacillus pleuropneumoniae involved in colonization, persistence and induction of lesions in its porcine hostKoen Chiers, Tine De Waele, Frank Pasmans, Richard Ducatelle and Freddy HaesebrouckVet. Res., 41 5 (2010) 65DOI: https://doi.org/10.1051/vetres/2010037