SAENGKIEO, U.; KIATSILAPANAN, A.; SAWANGKOON, S. A combination of hyoscyamine and theophylline for treatment of sick sinus syndrome in a dog. The Thai Journal of Veterinary Medicine, [S. l.], v. 56, n. 4, p. 1–8, 2026. Disponível em: https://he01.tci-thaijo.org/index.php/tjvm/article/view/292395. Acesso em: 10 oct. 2026.