Resistance to antimicrobial agents as a public health problem: importance of the use of antibiotics in animals.
Pérez-Trallero
E
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Departmento de Medicina Preventiva y Salud Publica, Facultad de Medicina, Universidad del Pais Vasco, and Servico de Microbiologia, Hospital Ntra. Sra. Aránzazu, Apartado 477, 20080 San Sebastián, Spain.
Zigorraga
C
C