Alvarez, R.H. et al. 1998. 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. 35, 6 (Jan. 1998), 266–270. DOI:https://doi.org/10.1590/S1413-95961998000600007.