VARNER, M. A. Use of milk progesterone testing for problem cows. The Bovine Practitioner, [S. l.], n. 21, p. 165–171, 1986. DOI: 10.21423/bovine-vol0no21p165-171. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/1281. Acesso em: 15 may. 2024.