Suranagi, Manohar J., K. Subramanyam, K. S. Subramani, and K. H. Srinivasa. 2020. “Tissue Doppler Imaging for Estimation of Left Ventricular Filling Pressure in Patients With Systolic and Diastolic Heart Failure: A Comparative Simultaneous Doppler Catheterization Study”. International Journal of Advances in Medicine 7 (2):319-25. https://doi.org/10.18203/2349-3933.ijam20200088.