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Del Valle I, Mendoza N, Casao A, Cebrián-Pérez JA, Pérez-Pé R, Muiño-Blanco T.Del Valle I, et al. Among authors: casao a.Reprod Domest Anim. 2010 Dec;45(6):e260-8. doi: 10.1111/j.1439-0531.2009.01552.x.Reprod Domest Anim. 2010.PMID: 19930134