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Brunckhorst, C. S.; Vuono, L. de; Barnabe, R. C. Elective Interruption of Pregnancy in Dogs (Canis Familiaris, Linnaeus, 1758). Braz. J. Vet. Res. Anim. Sci. 2000, 37 (3), 221-228. https://doi.org/10.1590/S1413-95962000000300009.