Alvarez, R. H., J. B. P. de Carvalho, A. Rosa e Silva, C. N. Perone, M. T. C. P. Ribela, and E. B. de Oliveira Filho. “Endocrine Profiles and Ovulation Rate of Cows Superovulated With FSH Following Passive Immunization Against Steroid Free-Bovine Follicular Fluid”. Brazilian Journal of Veterinary Research and Animal Science, vol. 35, no. 6, Jan. 1998, pp. 266-70, doi:10.1590/S1413-95961998000600007.