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Greenwood PL, Bell AW.Greenwood PL, et al. Among authors: bell aw.Vet Clin North Am Food Anim Pract. 2019 Jul;35(2):303-319. doi: 10.1016/j.cvfa.2019.02.008.Vet Clin North Am Food Anim Pract. 2019.PMID: 31103183Review.