RAJKUMAR, K.; KAMRAN, C. Ansar. Pulmonary to Systemic Flow Ratio (Qp/Qs) in Dilated Cardiomyopathy, Mitral Valve Disease and Patent Ductus Arteriosus Affected Dogs. International Journal of Livestock Research, India, v. 9, n. 5, p. 149–153, 2019. Disponível em: https://ijlr.org/ojs_journal/index.php/ijlr/article/view/1272. Acesso em: 24 apr. 2026.