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Levings RL, Roth JA.Levings RL, et al. Among authors: roth ja.Anim Health Res Rev. 2013 Jun;14(1):88-102. doi: 10.1017/S1466252313000042.Anim Health Res Rev. 2013.PMID: 23800429Review.
Levings RL, Roth JA.Levings RL, et al. Among authors: roth ja.Anim Health Res Rev. 2013 Jun;14(1):103-23. doi: 10.1017/S1466252313000054.Anim Health Res Rev. 2013.PMID: 23800430Review.