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Estellé J, Pérez-Enciso M, Mercadé A, Varona L, Alves E, Sánchez A, Folch JM.Estellé J, et al.Anim Genet. 2006 Dec;37(6):589-91. doi: 10.1111/j.1365-2052.2006.01535.x.Anim Genet. 2006.PMID: 17121606