Yáñez, U.; Antelo, C.; López, E.; Becerra, J. J.; Herradón, P. G.; Peña, A. I.; Quintela, L. A. Use of B–mode and Power Doppler Ultrasonography of the Uterus and Preovulatory Follicle to Predict Ovulation Time in Holstein Cows After Heat Synchronization. Span. j. agric. res. 2023, 22, e04SC01.