title: Assessment of different surveillance systems for avian influenza in commercial poultry in Catalonia (North-Eastern Spain).
authors.affiliation: Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona. 08193 Bellaterra, Barcelona, Spain. ana.alba@cresa.uab.es
authors.forename: A
authors.initials: A
authors.lastname: Alba
authors.forename: J
authors.initials: J
authors.lastname: Casal
authors.forename: S
authors.initials: S
authors.lastname: Napp
authors.forename: P A J
authors.initials: PA
authors.lastname: Martin