Jojima, Flavio Shigueru, et al. “Use of Measurements from Thoracic Radiographs to Identify High Mean Left Atrium Pressure in Dogs With Myxomatous Mitral Valve Disease”. Semina: Ciências Agrárias, vol. 40, no. 1, Feb. 2019, pp. 191-02, doi:10.5433/1679-0359.2019v40n1p191.