Viana CHC, Arruda RP de, Moretti AS, Visintin JA. Ovarian cysts, rectal palpation and ultra-rectal ultra- sonography diagnosis in sows: literature review and two clinical report studies. Braz. J. Vet. Res. Anim. Sci. [Internet]. 1998 Jan. 1 [cited 2024 May 2];35(2):64-8. Available from: https://www.revistas.usp.br/bjvras/article/view/5714