SERUM ESTRADIOL AND PROGESTERONE CONCENTRATIONS IN COWS WITH AND WITHOUT RETAINED PLACENTA . The Iraqi Journal of Veterinary Medicine, [S. l.], v. 13, n. 1, p. 97–101, 1989. DOI: 10.30539/ijvm.v13i1.1658. Disponível em: https://jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1658.. Acesso em: 1 apr. 2025.