?:authorAffiliation
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[\'Unit of Biostatistics and Clinical Epidemiology, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy.\', \'Osservatorio Epidemiologico Veterinario Regionale Della Sardegna, Istituto Zooprofilattico Sperimentale della Sardegna G. Pegreffi, Cagliari, Italy.\']
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