Obaid, F. A.; Maskon, O.; Abdolwahid, F. Systolic Function and Intraventricular Mechanical Dyssynchrony Assessed by Advanced Speckle Tracking Imaging With N-Terminal Prohormone of Brain Natriuretic Peptide for Outcome Prediction in CHF Pts. Sultan Qaboos Univ Med J 2013, 13, 551-559.