Phenotypes and genotypes of old and contemporary porcine strains indicate a temporal change in the S. aureus population structure in pigs. Tekijä Carmen Espinosa-Gongora, Arshnee Moodley, Urszula Lipinska, Els M Broens, Katleen Hermans, Patrick Butaye, Luc A Devriese, Freddy Haesebrouck, Luca Guardabassi