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Tildesley MJ, Keeling MJ.Tildesley MJ, et al. Among authors: keeling mj.Prev Vet Med. 2008 Jun 15;85(1-2):107-24. doi: 10.1016/j.prevetmed.2008.01.008. Epub 2008 Mar 6.Prev Vet Med. 2008.PMID: 18328581