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Agüero M, San Miguel E, Sánchez A, Gómez-Tejedor C, Jiménez-Clavero MA.Agüero M, et al.Avian Dis. 2007 Mar;51(1 Suppl):235-41. doi: 10.1637/7634-042806R1.1.Avian Dis. 2007.PMID: 17494559