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Harris RC, Snow DH, Katz A, Sahlin K.Harris RC, et al. Among authors: snow dh.Equine Vet J. 1989 Jan;21(1):45-7. doi: 10.1111/j.2042-3306.1989.tb02088.x.Equine Vet J. 1989.PMID: 2920700
Evans DL, Harris RC, Snow DH.Evans DL, et al. Among authors: snow dh.Equine Vet J. 1993 Sep;25(5):441-5. doi: 10.1111/j.2042-3306.1993.tb02987.x.Equine Vet J. 1993.PMID: 8223377
Snow DH, Harris RC, MacDonald IA, Forster CD, Marlin DJ.Snow DH, et al.Equine Vet J. 1992 Nov;24(6):462-7. doi: 10.1111/j.2042-3306.1992.tb02877.x.Equine Vet J. 1992.PMID: 1459060