Factors associated with twin births in cows from specialized dairy farms in Costa Rica. Ciencias Veterinarias, [S. l.], v. 28, n. 1, p. 7–21, 2013. Disponível em: https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/5424.. Acesso em: 29 apr. 2024.