A case-control study of risk factors for brucellosis seropositivity in Portuguese small ruminants herds

A M Coelho1, A C Coelho, M Roboredo

  • 1Direcção Geral de Veterinária, Direcção de Serviços Veterinários da Região Norte, Rua da República 133, 5370-347 Mirandela, Portugal.

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