J. C. J. Garcia, M. F. da Silva, and D. de S. R. Angrimani, “Persistence of congenital penile frenulum in male cat:: case report”, Braz. J. Vet. Res. Anim. Sci., vol. 56, no. 2, p. e151959, Aug. 2019, doi: 10.11606/issn.1678-4456.bjvras.2019.151959.