Use of vaginal cytology in the detection of the estral cycle phase of bitches and its relation with age and body condition score, Belém, Pará. Research, Society and Development, [S. l.], v. 10, n. 9, p. e25310917921, 2021. DOI: 10.33448/rsd-v10i9.17921. Disponível em: https://rsdjournal.org/rsd/article/view/17921. Acesso em: 5 dec. 2025.