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Van Donkersgoed J, Janzen ED, Potter AA, Harland RJ.Van Donkersgoed J, et al. Among authors: janzen ed.Can Vet J. 1994 Sep;35(9):573-80.Can Vet J. 1994.PMID: 7994720Free PMC article.Clinical Trial.
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Van Donkersgoed J, Schumann FJ, Harland RJ, Potter AA, Janzen ED.Van Donkersgoed J, et al. Among authors: janzen ed.Can Vet J. 1993 Dec;34(12):731-5.Can Vet J. 1993.PMID: 17424338Free PMC article.
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Harland RJ, Jim GK, Guichon PT, Townsend HG, Janzen ED.Harland RJ, et al. Among authors: janzen ed.Can Vet J. 1991 Mar;32(3):163-8.Can Vet J. 1991.PMID: 17423754Free PMC article.
Harland RJ, Potter AA, van Drunen-Littel-van den Hurk S, Van Donkersgoed J, Parker MD, Zamb TJ, Janzen ED.Harland RJ, et al. Among authors: janzen ed.Can Vet J. 1992 Nov;33(11):734-41.Can Vet J. 1992.PMID: 17424116Free PMC article.