J. L. Espinoza–Villavicencio, A. Palacios–Espinosa, B. Murillo–Amador, and R. Ortega–Pérez, “The uterine diameter and ovarian activity influence the presence of estrus and pregnancy in beef heifers under a J–Synch protocol for fixed–time artificial insemination”, Rev. Cient. FCV-LUZ, vol. 34, no. 2, p. 7, Jun. 2024.