Suranagi MJ, Subramanyam K, Subramani KS, Srinivasa KH. Tissue doppler imaging for estimation of left ventricular filling pressure in patients with systolic and diastolic heart failure: a comparative simultaneous doppler catheterization study. Int J Adv Med [Internet]. 2020 Jan. 23 [cited 2026 May 21];7(2):319-25. Available from: https://www.ijmedicine.com/index.php/ijam/article/view/2141