Suranagi, M. J., Subramanyam, K., Subramani, K. S. and Srinivasa, K. H. (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), pp. 319–325. doi: 10.18203/2349-3933.ijam20200088.