Pfeifer, L. F. M.; Mapletoft, R. J.; Dardawal, D.; Singh, J. Effect of Injectable Progesterone on Follicular Development in lactating Beef Cows Treated With Estradiol Plus a Low-Concentration Progesterone Device. Braz. J. Vet. Res. Anim. Sci. 2018, 55 (2), e136924. https://doi.org/10.11606/issn.1678-4456.bjvras.2018.136924.