Determination of the clonal structure of avian Escherichia coli strains by isoenzyme and ribotyping analysis - Silveira, Wanderley Dias da; Lancelotti, M.; Ferreira, A.; Solferini, Vera Nisaka; Castro, Antonio Fernando Pestana de; Stehling, E. G.; Brocchi, Marcelo (Journal of Veterinary Medicine B, 2002)