Viana, Kelen Salaroli, et al. “Influence of Different Forms of Culture on the Nitric Oxide Action on Maturation and Membrane Integrity on Bovine Cumulus-Oocyte Complex”. Brazilian Journal of Veterinary Research and Animal Science, vol. 48, no. 2, Apr. 2011, pp. 147-54, https://doi.org/10.11606/S1413-95962011000200007.