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MacDonald DG, Morley PS, Bailey JV, Barber SM, Fretz PB.MacDonald DG, et al. Among authors: barber sm.Equine Vet J. 1994 Jul;26(4):323-6. doi: 10.1111/j.2042-3306.1994.tb04394.x.Equine Vet J. 1994.PMID: 8575401
Lees MJ, Schuh JC, Barber SM, Farrow CS.Lees MJ, et al. Among authors: barber sm.Equine Vet J. 1987 Nov;19(6):561-3. doi: 10.1111/j.2042-3306.1987.tb02675.x.Equine Vet J. 1987.PMID: 3504770No abstract available.
Barber SM.Barber SM.Vet Clin North Am Equine Pract. 2005 Apr;21(1):191-215. doi: 10.1016/j.cveq.2004.11.010.Vet Clin North Am Equine Pract. 2005.PMID: 15691607Review.