Duffield, T.F., Peregrine, A.S., McEwen, B.J., Hietala, s. K. and Bagg, R. 2001. Seroprevalence of Neospora caninum Infection in 25 Ontario Dairy Herds and its Association with Periparturient Health and Production. The Bovine Practitioner. 35, 1 (Jan. 2001), 8–12. DOI:https://doi.org/10.21423/bovine-vol35no1p8-12.