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Halliwell RE, Downes M, Adams VJ, Allister R, Harrison W, Mellanby RJ, Dean RS.Halliwell RE, et al. Among authors: allister r.Vet Rec. 2016 Jun 18;178(25):635-6. doi: 10.1136/vr.i3032.Vet Rec. 2016.PMID: 27313254Free article.