Nasser, Tharwet H., Hedef Dhafir El-Yassin, and Sabbah Yakoob. 2008. “Β-Natriuretic Peptide Level As a Predictor for the Severity of LV Dysfunction”. Journal of the Faculty of Medicine Baghdad 49 (4): 438-48. https://doi.org/10.32007/jfacmedbagdad.4941336.