Franzo, Giovanni Reconciling individual and population levels of porcine reproductive and respiratory syndrome virus evolution. [electronic resource] - Virologica Sinica Aug 2017 - 342-345 p. digital Publication Type: Letter ISSN: 1995-820X Standard No.: 10.1007/s12250-017-3981-z doi Subjects--Topical Terms: AnimalsDatabases, GeneticEvolution, MolecularGenes, Viral--geneticsGenetic VariationGenome, ViralPorcine respiratory and reproductive syndrome virus--geneticsRecombination, GeneticSelection, GeneticSwine