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"Right ventricular function in patients with pulmonary hypertension; the value of myocardial performance index (Tei index) measured by tissue Doppler imaging", Tuj-hlth, م 39, عدد 3, سبتمبر 2018, تاريخ الوصول: أغسطس 29, 2026. موجود في: https://journal.latakia-univ.edu.sy/index.php/hlthscnc/article/view/3873